Nash and Joe follow Roy McNair to Las Vegas in order to catch him once and for all, as well as get Tommy Zee. Soon, the entire SIU is in town, and Nash is undercover as the pilot responsible for flying the money to Mexico. Cassidy also goes out to Vegas, where she asks Evan to elope with her. Both Caitlin and Cassidy make career choices. Everyone is shocked when tragedy strikes the SIU.moreless
After Cassidy is shot at school, Nash and the SIU's investigation leads them to an illegal gun selling plot. Nash's home is under construction, so he and Nick move in with Lisa and Cassidy for a few days.
Nash makes a twelve year-old boy tag along with him, as he is the key to a big drug bust, and is a potential victim. Joe's son, J.J. is in town, and Joe tries to help him get a job. Nash has a difficult time trying to find the perfect nurse to help take care of Nick.moreless
The SIU gets a one week reprieve, and are back in action. They work with Jake Cage to try and hunt down Brasher, who escaped while being transported. Caitlin prepares to move to Boston. Cassidy has second thoughts about getting married. Harvey tries to figure out if he is the father of Anna's baby.moreless
The SIU try and track down a sniper, who is killing people at random. Joe has a rat problem, and winds up in a dispute with Nash. Evan proposes to Cassidy, which doesn't go over well with Nash, but things get put on hold when she is involved in a fatal car accident.moreless
After the car bombing of a rouge CIA agent, with whom Caitlin has a history, she becomes the prime suspect. However, he was not the one in the car, and is trying to hunt her down. Nash tries to dig into her past in order to help solve the case and keep her safe. Joe gets a personal trainer that is too hardcore for his liking. Cassidy agrees to help Nick in a tango competition.moreless
To find a cop killer, Joe goes undercover at a prison, as they believe the order came from behind bars. Harvey, Evan, and Bryn work the case from the outside. Nash has to deal with being at court, and working with his sister on their Nick's will. Harvey is staying with Evan, and drives him nuts.moreless
Everyone at the SIU is trying to making Christmas Eve plans, while working on cases. Nash and Joe work on an armed robbery case, while Harvey tries to solve a case where prostitutes are blackmailing. Joe wants to surprise Nash by having the Cuda detailed, but it winds up getting stolen.moreless
When a witness to a gang murder not only claims to have seen everything, but also knows the killers, things look up. However, the SIU soon discover the so-called witness got her information second hand. The real witness is someone who hangs around Evan's place of work, and he winds up involved in things. Joe and Nick get into a tax scheme, involving Mr. Woody. Nash and Caitlin wind up on an unintentional, and awkward double date. Cassidy's roommate leaves town and neglects to tell her that she has a 24/7 online streaming site.moreless
Nash gets a call from a reporter wanting to talk to him about his long lost and thought-to-be-dead brother. When he goes to meet her she gets murdered. While investigating the case he comes to learn that his brother is not dead. Lisa's sister comes to town to stay with Cassidy.moreless
Lynette finds herself the target of a Chinese mob, trying to locate a missing money plate that they suspect were sent to her from an old flame. Joe's father is in town, and decides to do a little investigating himself, when he overhears a neighbors conversation.
Nash's sister, Stacy, becomes the latest victim of a kinky sex couple, who drug, rape, and rob men and women. Nash and the SIU try and catch the couple. Nash also deals with personal issues, when he discovers that his sister is a lesbian, and dating his old girlfriend. He also finds out a secret that Whitney is keeping from him.moreless
Frankie Dwyer puts out a contract on Nash's life, while smuggling heroin inside of tofu containers. Caitlin and Nash discuss his lack of commitment. When Inger's mother starts feeling homesick, thanks mostly to Joe's scheming, she decides to set her up with Nick. Evan starts turning his life around, by deciding to become religious and get baptized. The SIU bring in a woman as a potential replacement for Evan.moreless
While hunting down the killer of the chief of police, who is Nash's friend, the SIU stumble upon a major money laundering scheme, and are forced to work with an uncooperative DEA agent, who is undercover. Another police unit is forced to move onto the barge, making the SIU very chaotic. Angel looses his wings, and Nash helps him relocate them. As Nick's Alzheimer's worsens, Nash worries about him.moreless
Nash and the SIU try to track down a man, whose dead brother used to be a highly loved and respected cop, and is using his brother's uniform and badge to commit crimes. The man is even more dangerous as he has hallucinations of his dead brother. Everyone tries to console Nash after his break-up with Caitlin, by telling him they didn't think they were good together. Nick, looking for more independence, tries to get a driver's license. Cassidy turns to Evan to help her move.moreless
The SIU try and locate an anti-government sniper, targeting local government businesses. Michelle gets in hot water when she shoots a suspect, who she believes has a gun on a roof, but there is no evidence of one. It's Halloween and there is a Blue Flu, forcing the SIU to also deal with local police work. Joe tries to find a specific hard-to-find costume for Lucia, after the one he has gets ruined.moreless
A nurse who assists a plastic surgeon for the mob is murdered because she stole the before and after photos of altered mobsters. Before her death, she passes a key to the hidden files to Joe, and Joe becomes a target of a mobster. Nick appears with Cassidy in her play, and does well during the rehearsal, but has issues when they go live. Harvey meets a woman, and he instantly falls for her, but she has a big secret. Caitlin sells Harvey her car.moreless
The SIU investigate when a group of runaway youths carjack and murder people. They all seem to be tired to a shelter, which is run by an old friend of Harvey's. Joe goes undercover at a department store to clear Maria of shoplifting charges. Caitlin is desperate to meet the host of an art gala, which Nash has tickets too.moreless
The SIU try and stop a group of jewelry thieves who set stores on fire and then dress up as firefighters to get the loot. Nash gets in an accident with a pedestrian, and swears he is innocent. To make matters worse, Caitlin filed away a bill without Nash knowing, causing his car insurance to lapse.moreless
Nash and Joe transport a key witness, who is in the Witness Protection Program, and must avoid being killed by federal agents who've been bought off by the defendant. When Cassidy's date cancels last minute, she decides to ask out J.J.
An investigation of a shot up car with five dead gang members, and an alive rival member in the trunk, leads Nash and Joe to a drug dealer from a rich family. Evan and Bettina go undercover at a transgendered beauty pageant to find killer that is a woman, pretending to be a man in drag. Harvey runs into an old flame.moreless
A former flame of Nash's who conned him, is back, and is the key to locating plutonium that has been smuggled into the country. Joe decides to try and market his family salsa, but as usual, things go awry.
In order to ensure that he gets into the Witness Protection Program, a key witness in a money laundering case puts a hit on Nash and Joe if anything happens to him. When he is murdered, Nash and Joe have to avoid being taken out, while tracking down the killer, so they can have evidence against the original suspect. Cassidy is nominated for an award, and the stress causes her to fight with Lisa, who has just landed a big client. Nash makes things worse when he pampers Cassidy, and Lisa is against it.moreless
Nash helps a Chicago detective who follows a murder suspect to San Fransisco. At first, Nash can't stand her, but they soon fall for each other. Joe and Nick enter Mr. Woody into a race, only to discover he is depressed. Joe decides to hire an animal hypnotist.
The SIU try to track down a couple of death metal fans who shot Harvey and have others on their hit list. Stacy and Nash meet a woman who claims to know Nick, and discover some secrets about Nick's past. Joe finds Evan and Cassidy in a compromising situation, which lead to their relationship being revealed to Nash.moreless
While on their way home, Nash and his fellow SIU cops are caught in the middle of an extremely dangerous train heist. Cassidy is rushed to the ER.
Nash is out of action after Caitlin's gun accidentally discharges, and he gets shot in the butt. Much to his chagrin Nick tries coddling him. Joe and Bettina do a joint investigation with FBI agents to bust a clever con-artist, only to find out the entire thing is a con. Cassidy meets a guy, which angers Evan, leading to a fight. Things get worse when the guy turns out to not be at all like he he first appeared.moreless
The SIU try and catch a man who has embezzled millions of dollars from the city pension fund. Rick Bettina, who is determined to catch the man himself, keeps getting in the way. After missing their flight to Jamaica, Nash and Caitlin fight, and she throws a signed Willie Mays baseball out the window, causing Nash to be irate. Caitlin scavenges the city desperate to find it. Anna takes issue with Harvey using a babysitter to look after Jerry.moreless
Nash's old nemesis from the SIU, Rick Bettina, now a bounty hunter, is back and in competition with Nash as they both try to track down mobster Ray Goetz, who Bettina wants on assault and battery charges in Vegas, and Nash wants to try and find someone who killed a mobster. Joe panics after he losses his wedding ring.moreless
Nash and Joe are on the trail of a renowned assassin who has come to San Francisco to kill FBI special agent David Katz. Lisa returns from Paris with a big announcement, but seeing Nash again, might change things.
When a married woman, who is cheating on her husband, falls to her death at a hotel, Nash and the SIU investigate. After Evan gets beat up by his girlfriend's pimip, Joe takes him in. Despite Joe's hospitality, Evan's downward spiral continues, leading him to a dangerous decision. Boz tries to get Joe and Nash to promote him.moreless
After a hired hitman for a drug cartel gets killed in an accident, Nash becomes him, in order to track down who is behind it all. Nick's poker buddies plan a bank heist, leaving Nick in a predicament. Joe is excited about Inger returning from Sweden, but looses some excitement when she shows up with her mother. Evan asks Cassidy for the engagement ring back.moreless
A gang of female prisoners escape in search of five million dollars in bearer bonds, while Nash helps the woman framed for the theft of the bonds. With Inger out of town, Joe is left to fend for himself, and is introduced to a new restaurant by Nash. However, the delivery service is subpar. Cassidy considers a career with the CIA.moreless
Nash and the SIU try and locate a kidnapper, who they believe kidnapped the wrong child. Caitlin's maid drives everyone nuts. Cassidy stresses over school, and a guy who keeps asking her out. Evan's behaviour starts to become erratic as he obsesses over Cassidy.
The SIU try and track down a group of women who are robbing banks with the same MO as their husbands and boyfriends, who are all in prison. Caitlin is ready to send a negative report on the SIU, which upsets Nash. Nick wants to move out, into a old-folks home which has just recently been made co-ed, where he and his friend are the only males.moreless
Nash leads the case, when it appears the infamous Zodiac killer has returned. Joe goes undercover to do a drug bust. A.J. awaits news on being the captain. Nick gets kicked out of the retirement home, and allows Cassidy to throw a party at Nash's place.
An investigation into a Vietnamese sex slave ring, leads Nash and the SIU to Frankie Dwyer. Caitlin agrees to go undercover as the seller, to help catch him. Nash has a tooth ache and after coming out of surgery still high on the medication, he calls Caitlin "Lisa", while expressing his love. Inger is about to come home, so Joe tries to loose weight. While at the gym he bumps into a woman he once arrested, who seems to have become obsessed with him. In order to be able to afford his rent, Evan gets a job as a parking attendant, where he bumps into Cassidy while she is on a date.moreless
The SIU desperately try to find who is behind producing a very deadly virus. A woman shows up, claiming to be Joe's daughter. Evan and Cassidy start sneaking around together.
The SIU try and track down a prowler, who ups the anti with each crime. J.J. chips his tooth while eating at a restaurant and Joe decides to try and get a settlement. Harvey feuds with a neighbor over a dog. Michelle gets asked to move back to Auto Theft, but wants to stay with the SIU.moreless
Nash busts computer hacker/robber, Andy, and discovers Andy's committed the crime because his wife has been kidnapped. The crew of crooks want Andy's hacker skills as their ransom. The SIU must work to save the woman and bring down the crew before their daring daytime robbery is successful. Bryn catches a robbery in act and chases down the man. During the standoff she learns that the robber is a former boyfriend. Whitney is concerned about how Nick may handle her and Nash's relationship, when things get more serious between the two of them.moreless
A convicted murderer is accidentally released from prison, and seeks revenge on those who helped put him away; and Michelle happens to be one of them. Joe gets an off duty case of blackmail, and Nash refuses to help him, so Evan becomes his new partner.
Nash is on the case when a beloved community member, and personal friend of his is gunned down in Chinatown. A friend of Nash's is in town trying to get back money that he was cheated out of, which he owes to some gangsters. Joe and Nick try and breed Mr. Woody.moreless
A small time getaway driver sets up two robbery gangs to rob each other, while he walks away with the loot and complete immunity. Joe works an off duty case for a man who receives the exact amount of money he paid for a ransom when his son was kidnapped five years prior. Trying to help Evan out, and re-evaluate him, Joe has him work the case too. The 'Cuda's hood is graffitied, and Nash puts Boz Bishop on the case.moreless
After a public shootout, which leaves civilians wounded, the SIU's investigation leads to a War Games between two men, after each other's prized possessions. Joe and Evan investigate Bettina's fiancée, who he suspects is cheating on him. Evan tries to stall the case when he realizes he is the one they are after.moreless
Kelly is back in San Fransisco and the victim of an attack. Nash and the SIU discover that Kelly's boyfriend has ties to an Irish terrorist group and he is seeking revenge against the leader, while the group plans an attack. Joe and Evan get a side job looking after a party-minded Arabian prince awaiting a heart transplant.moreless
Nash and the SIU investigate, when a slew of various robberies with different suspects seem to lead to one man with multiple personalities. Things get more interesting when his psychologist seems to be behind it all; someone who was a former flame of Nash. Nick wants to be financially independent, so he looks for a rich widow, however, they soon fall for each other. After Evan comes to work drunk, Harvey confronts him about his substance abuse issue.moreless
Bettina forces Nash to take a ten month vacation, and drives everyone at SIU nuts. Nash tries everything he can to get his job back. Despite being on leave, he winds up helping with the investigation of a group of robbers hitting seemingly random targets. Nick races Mr. Woody against Bettina's mom's horse.moreless
The SIU investigate a counterfeit operation, that is being run by a group of people pretending to be the SIU. Joe and Nash try and earn money on the side by locating a stolen Super Bowl ring, but must go undercover as a gay couple.
The son of a mafia man, who is a prime suspect in an old murder case, returns to town, and is trailed by Nash and the SIU when a new body shows up. Nash soon discovers he has a relationship with Kelly. Joe has to deal with a possible case of theft at his bar.moreless
A dead woman is found in Bettina's bed, and all signs point to him as the killer, especially when he seems to be withholding information. Nash is convinced that he is innocent and tries to prove his innocence. Joe tries to track down a man who has stolen his identity and is living a life of romance. Inger assumes that Joe is cheating. Cassidy asks Evan to be her friend's date in a double date, but things don't go as planned.moreless
The SIU try and track down a well known drug dealer. When $40, 000 go missing during one of the busts, all eyes are on Evan, which causes a rift between him and the team, especially Harvey. Joe and Nash do an off duty case of protecting a famous chimpanzee. Their case gets linked to an undercover one of Jake Cage, who wants to use the chimp as bait.moreless
After narrowly escaping an explosion, Nash suffers from short-term memory loss. He tries to figure out what he knew about an undercover case he was on, but the SIU was in the dark as much as he is. Michelle joins the SIU, and Evan is accidentally recorded talking about how much he likes her on one of her recording devices. Cassidy wants to tutor an ex-con.moreless
Nash and Joe try and find a man who is on a crime spree, feeling he is owed money from a former partner-in-crime. Along with him, is his girlfriend, and daughter of an old partner of Nash's, who isn't thrilled with the way things are going down. Cassidy poses for a safe sex ad, much to the chagrin of her parents.moreless
Nash and the SIU try and figure out who killed a famous latino actress. Caitlin moves in with Nash, and changes his entire apartment around, causing discomfort with Nick. Evan returns to the SIU after his surgery. Joe doesn't want to have to go to Sweden to visit Inger's sick mother.moreless
After a series of murders in an inner-city community, Nash and Joe's number one suspect is a group of Urban Commandos who has been hired to protect the community, but seem more threatening than helpful. While awaiting the birth of the new baby, Joe searches for the family crib that he lent to Nash seventeen years ago.moreless
When an international fugitive comes to town for his daughter's wedding, Caitlin reluctantly agrees to go undercover with Jake Cage, but first must train him in the ways of high society. Joe and Nash get hired to break into a building to figure out the flaws in the security system. When a valuable violin actually gets stolen, the prime suspect becomes someone from Joe's new detectives in training class, where Joe had talked about the case. Evan befriends a prostitute. Nash and Caitlin argue about the seriousness of their relationship.moreless
Nash and Joe are forced to protect a loudmouth, overbearing shock jock, when someone attempts to shoot him. Nick asks Nash and Joe to help him locate a man, who is in the country illegally. Caitlin is forced to babysit her new roommate's children.
The SIU gets disbanded and split up; Nash and Joe are given park duty, Harvey goes to Homicide, Evan is given traffic duty, and even Caitlin has to move to Vice. While on park duty, a murder takes place, so Nash and Joe team up with Harvey and Homicide. Evan and Cassidy pick a wedding date, but they wind up arguing about every detail. Things go from bad to worse, when both of them find themselves in scandalous situations with a different person. Harvey hires a stripper for Evan's bachelor party, who turns out to be someone from Harvey's past.moreless
Nash and Joe investigate a case of Chinese people smuggling. Things are particularly difficult when one man seeks revenge for the death of his parents, who were supposed to be smuggled in. Harvey tries to interrogate a woman who helps give people fake IDs. While working for the mayor, Evan becomes very close with Lisa. Everyone at the SIU is told they need to speak with a shrink.moreless
Tony B. fakes his death after he rips off a mob boss with ties to Nash's past. Nash uses this as an opportunity to put the mobster away for good. Joe catches Ulla smoking pot. Nick gets arrested for protesting against the demolition of a building, but cannot remember why the building is so important to him.moreless
Nash tries to track down a professional robber and his crew. After Evan gets shot at the first heist, he debates about being a cop, while in the hospital. Cassidy looks at some colleges, and the cost of tuition has Nash wanting to make an extra buck. He decides to become a P.I. and try to locate the car of a San Fransisco Giants' shortstop.moreless
After Nash shoots, and kills a homicide suspect, he is investigated by Internal Affairs. However, Nash does some investigating himself, when it seems that the lead AI might be dirty. Cassidy has a school project and decides to do it on Evan, and joins him and Harvey on a stakeout, where she and Evan form a bond. Joe debates about whether or not to sell his part of the club to the other co-owner.moreless
A million dollar bounty on Nash's head triggers an onslaught of attacks by a series of ultimate fighters. Michelle, Evan and Harvey are on a stake out, trying to trackdown a rapist who meets women online. Nash is convinced that Cassidy's new boyfriend in gay.
After Nash's accountant commits suicide, he discovers that he is now broke. The scam behind all of it leads the SIU to Tamara Van Zant, Nash's former flame, who's scammed him more than once before. Inger wants the bathroom remodelled, and Joe insists on doing it himself. Cassidy and Evan try to figure out living arrangements. Nash is worried about Nick after his heart attack.moreless
Caitlin helps the SIU try to catch a couple who preys on swingers. Nick turns to Joe to help him recover the body of an old friend, whom he made a promise to. Evan and Cassidy have a fight.
While going undercover with a Russian mob, Harvey gets kidnapped. When they discover it was not the Russian mob that did it, A.J. and Evan are forced to go undercover as well, as Nash and Joe try to locate Harvey and the $500, 000 he had with him. Nick gets in trouble at his retirement home once again, is stays with Nash. Joe looks into investing in a restaurant, and Nash tries to convince him otherwise.moreless
Nash and Joe try to stop a crooked bail bondsman who tries to have a witness assassinated. Joe and Nash open up a private detective agency, and their first case is to locate a Cher impersonator's stolen wig. Harvey and Evan feud over a washing machine.
Nash and the SIU try to track down a man who has stolen a dangerous and contagious drug, and the antibiotic. Nash goes undercover and starts 'dating' the man's ex-girlfriend, who he now stalks. Joe fears he may only have three days to live after he is exposed to the toxin. Nick announces that he is getting married. Lisa enters a baking contest, in hopes that she can win a ton of money.moreless
After a bomb threat, and explosion, Nash is asked to be the body guard for the mayor. Nash's father, Nick, who suffers from dementia is forced to stay with him after an incident at his retirement home.
Lisa witnesses a murder, but there is no evidence afterward to prove what she saw. Nash, fearful for his ex and daughter, has them stay with him. Lisa gets involved in trying to solve the case, which leads to her getting in trouble. After Joe's partner's death, he tries to sell his half of the store.moreless
An ex-cop who was put in jail by Caitlin is out, and seeking revenge, so Nash and Joe help her catch him one more time. Joe and Inger continue trying to conceive, but Joe feels like everything is forced. Harvey and Evan go undercover to catch people robbing rich tourists in a ritzy hotel. While on the case, Harvey meets a woman.moreless
Nash finds himself on the trail of a heroin dealer. Joe has a pension dispute, and initially becomes a traffic cop, before he screws it all up, and winds up with the SIU.
Nash and Kelly are about to go on their belated honeymoon, when Nash gets caught up in chasing down a renegade FBI agent, on the Most Wanted List.
A home invasion turns into murder. When Nash takes out one of the gang members, they go after him at his place, while Cassidy is staying with him.
The SIU reopens old cases on a serial killer who was never caught, when the skeleton of another victim is found. To make things more interesting, the deceased has an uncanny resemblance to Angel. Bonnie, Harvey's ex-wife, is back in town. Caitlin uses the help of her new boyfriend to help coach a soccer team, whose next game is against Joe's team.moreless
The SIU try and track down a person selling deadly drugs to body-builders, which has them become highly aggressive, before dying. Helping them on the case is an overbearing, unorthodox, cop, Jake Cage. Cassidy struggles with the aftermath of the accident.
Nash puts an attractive musical artist under protection, when a group of vampires seem to be after her. Her flirtatious attitude towards Nash has Caitlin and him butting heads. Joe puts Boz in charge of buying a car for Inger, and things don't go as planned. Evan meets a beautiful woman while walking Harvey's dog, King, but she turns out to be different than Evan first thinks.moreless
Cassidy finds herself in the middle of an SIU case when she becomes the victim of a high-climbing jewel thief and Nash begins to close in on the suspect, who happens to be her boyfriend. Stacy becomes concerned that Nick is being turned into a lab rat at the university where he has volunteered for a research study.moreless
A sleep-deprived Nash must track down an ingenious bomber targeting a corporation he feels has wronged him. Cassidy gets a part in a play which involves her being topless, which bothers Evan. When Nash announces that he is going to see the play, Cassidy worries what he'll think when he discovers the nudity.moreless
The SIU try and locate two women who commit robberies. Betty Ann finds some discrepancies in the paperwork, leading Nash to believe there is a mole in the SIU. Boz and Antwon work a case for Joe, trying to find who stole a master copy of a tape from a record producer. Joe gets offered $350,000 for Mr. Woody, but decides to stall, hoping to get more. Rachel celebrates her birthday.moreless
Tamara Van Zant is back in town, and loaded, after her very rich husband passes away. In order to protect herself from whomever is after her, she fakes a marriage to Nash. Nick agrees to pretend to be the boyfriend of his lesbian friend, so she can make her son think she is straight. Unbeknownst to him, her son is a high profile gangster, who is involved with Tamara.moreless
Nash and Joe get in a car chase, and afterward discover that there was three million dollars in the backseat. They soon learn that there was supposed to be six million. Bettina is now the head of S.I.U. and is determined to pin the missing three million on Joe, who was at one point alone with the money. Harvey bumps into a woman he once arrested and they start a relationship. Evan worries that Harvey may be getting conned.moreless
Nash and Joe try and track down stolen FBI weapons from two car thieves. Nash reluctantly agrees to go on a blind date with Joe's nanny, but winds up enjoying himself. After his car is destroyed by one of the stolen weapons, Joe looks into buying a new one.
Nash Bridges and his team investigate a case of stolen computer chips which cost several millions of dollars. Nash also has to deal with signing divorce papers from his second wife, Kelly.
Nash and Joe enlist the help of a prison inmate whose former partner is willing to kill anyone to find missing money from a job they pulled years back. Lisa's new business partner isn't what he seems, so she enlists the help of Joe to investigate him.
After a robot robs a store and kills the clerk, Nash must track the elusive people behind it before their next gig. After Inger sells a painting that is said to have an original Declaration of Independence hidden behind it, Joe must jump through hoops to get it back. Nick is convinced that he will die on his birthday, which is fast approaching.moreless
Geraldo Rivera comes to do an interview with Nash and Joe. At first they have to hold things off while Nash recovers from having his drink spiked while undercover. Once he comes through it, they become curious as to how Geraldo knows so much about their personal lives. The SIU also has to investigate what starts as an open-and-shut self defence case, which becomes more complex the deeper they dig.moreless
Nash goes undercover to try and stop a high-end heist artist. Joe helps a pompous restaurant critic who's received death threats. Nash decides to allow Evan to come back to the SIU, and it takes him some getting used to. Harvey helps out a troubled 12 year old boy, who he catches breaking into a house with a gun. Caitlin takes an administrative job within the department.moreless
The SIU try and track down a serial killer who uses a cab to pick up passengers, then murders them. Feeling guilty, Rachel reveals herself as the mole, and tries to help Nash take down Lt. Urbanski. Cassidy struggles with whether she wants to continue to be a cop.
The SIU try to track down a group of people who are killing in each as part of a survival type game. Boz becomes the prime suspect in a murder case when a body is found in his trunk.
After three suspects walk free due to a witness recanting her statement, people start showing up dead. Caitlin and Joe decide to go into business together, selling donuts online, but have some issues agreeing on things. Evan gets arrested and turns to Cassidy for help.
Nick thinks he sees his long lost son, Bobby, but the person is just a teenager. Nash suspects that the child, who is mixed up in a drug ring, may be Bobby's son. While all this is going on, he deals with being sick, which causes strange hallucinations. Cassidy starts dating a plastic surgeon and contemplates have breast augmentation. Harvey accidentally releases a squirrel in the SIU and he, along with Antwon, try and catch it.moreless
The SIU try to track a group of high profile car jackers who target San Francisco socialites. Nash and Joe take an off duty case, where a nun is pregnant and claims it is divine intervention. Angel shows up, and Nash tries to use him to help solve the case, and realizes that he has a positive affect on his father. Joe tries to stop a speed demon who constantly goes down his street. Cassidy becomes curious about Antwon's past.moreless
The SIU try to track down a briefcase with a lap top in it, which contains classified weapons intelligence. One of the key persons in the case is Tamara Van Zandt, who agrees to help them. Joe takes a private detective case to discover if a symphony conductor is having an affair. Cassidy struggles to let go of Evan's memory when she is asked out on a date.moreless
Nash and the SIU are on a timeline when it is revealed that a death row inmate scheduled for execution that night, may in fact be innocent. Nash's starter is busted, so he must spend the whole day in the car, as he can't turn it off. Joe's day is not going well as he tries to keep hydrated by drinking lots of water causing frequent bathroom trips. Also, his daughter is accused of being a bully in school, and things get out of hand when he tries to resolve it.moreless
Nash and Joe track down a former mob underboss who's murdering San Francisco criminals. Inger has to go out of town, leaving Joe with the baby. Nick has a new girlfriend, but she has some secrets.
Nash must track down an escaped prisoner, who is hellbent on overthrowing the government, and getting his daughter back. Lisa decides she wants to move to Baltimore, which angers Cassidy.
The SIU try to track down a mentally ill serial killer, who uses Sherlock Holmes stories as backdrops for his murders. Joe, on Nash's recommendation, hires a nurse to take care of Lucia. She is great with the baby, but drives Joe and Ingur crazy. Evan worries about a police test that everyone in the SIU must take.moreless
A pair of lawyers are ambushed leaving one riddled with bullets and the survivor barely wounded. The survivor easily points out the killer, a teen with a record, but Nash has his reservations about the case. Joe discovers that the previous owner of the house had a tenant, who has a legal right to live in the house. Rachel meets a man online, but can't make the date she set up, sending Cassidy instead. Both Cassidy and Rachel are under the presumption that the man is into them.moreless
The SIU try and locate a kidnapped goalie, who seems to have been kidnapped by the Russian Mafia. Tony B., who is involved, has lost all memory, and helps the SIU try and figure it all out. Inger wants another baby, and Joe has to make clinic visits. Harvey and Evan borrow the Watch Commander's squad car, without permission and accidentally shoot a hole through the roof.moreless
When Rick Bettina escapes custody during his parole hearing, Nash must track him down before he can recover the $2.5 million dollars in pension money he stole. Joe tries to help Dov and Amy work out their relationship, before his house's renovation suffers.
Cassidy gets assigned to a dangerous undercover gig involving synthetic diamond smugglers and a deadly assassin working for the South African diamond cartel. She, and her partner Rachel McCabe, team up with the SIU to solve the case. Joe and Inger try and fix their housing dilemma, but the sweet old lady who sold them the house, shows her true self. Joe also works an off duty case where someone has stolen very expensive wine from a winery, and is asking for a million dollars in ransom.moreless
When a rocket launcher known as The Javelin is stolen from an Army base, Nash works with the Army Captain responsible for it. The man who paid to have it stolen is desperate to get it back. Evan and Harvey investigate attacks on male transvestite prostitutes, and Evan is chosen to go undercover as one.moreless
The SIU try to track down missing armoured cars. Joe and Nash do an off duty case for a pro football player, that involves them looking for a fan. Cassidy and Evan discuss telling Nash about their relationship. Nash and Nick fight over a dentist appointment.
The SIU try and track down a man who has been stalking women all with the same name, and has murdered one of them. Harvey finds himself attached to one of the potential women, as she is a fellow Deadhead, however, he soon discovers she has many secrets. Joe becomes a leiuteniant but realizes it comes with a ton of paperwork. Nick injures his leg and annoys Nash and Cassidy to no end, so Nash hires a woman, who turns out to be eccentric, to take care of him.moreless
While trying to stop a bank robbery, Cassidy accidentally kills a bystander, which leads to a suspension and investigation. Nash tries to track down the people behind the robbery while Cassidy contemplates her future as a cop. Joe hires Betty Anne as an assistant, which drives Nash nuts. Antwon's sister comes to town and tries to get him to reunite with his ailing father. Rachel is forced to go to a wedding for her ex, and winds up drunk and sleeping over at Nash's.moreless
Nash and his friend, who is a federal marshall, are taken hostage by a Miami drug lord who wants to exchange them for a witness who's scheduled to testify against him in court. As usual things aren't as they originally appear when the SIU learns that the witness may have secrets of her own. Joe gets audited, and winds up in the middle of a lover's quarrel between Pepe, who is his accountant, and the auditor.moreless
The SIU work with a Canadian Mountie to try and track down a ring of poachers who are illegally selling bear gallbladders, which are supposedly valuable as medicine and as an aphrodisiac. Rachel is asked to do a report on Cassidy. Rumours start spreading about Nash and Rachel's relationship, which is not helped when she fears she may be pregnant. Nick gets into a physical altercation with a fellow fisherman over a fishing spot.moreless
The SIU try and track down a vigilante, who is taking out the members of a gang one by one. Nash's distant cousin, who is a cop, visits from Scotland, hot on the trail of an art thief. Nash has a difficult time believing he is a top ranked cop, as he appears to be clumsy, and has strange detective methods. Harvey hooks up with his neighbor, but her dog seems to get on his last nerve.moreless
Nash and Joe are arrested for the murder of three SFPD Investigators, one of whom has a bad history with Nash. While Nash and Joe stand trial with a police board, it is up to Evan, Harvey, and Internal Affairs agent, Caitlin Cross, to figure out the truth.
Nash and Joe team up with a tough-talking NYPD Special Crimes Detective in order to track down a famous fashion model's deadly stalker. When Evan's one-night stand steals his badge, he turns to Harvey for help tracking her down, however he knows nothing about the woman. Nick and Lynette get arrested for assault against a local politician, and decide to fight the injustice.moreless
A man kills an elevator full of people, leaving just one woman alive; a reporter who only cares about the headlines. While giving a test drive to a potential buyer, Joe's car gets stolen. He lies to Inger about what happened and when she finds it parked outside of a hotel, she assumes he is cheating. Harvey accidentally gets sent nude pictures of a woman, and he is determined to find her and ask her out.moreless
A world renowned hit-man has been hired to kill the chief witness in a far reaching drug prosecution. However, this man is Nash's childhood friend gone wrong. A cameraman follows Nash and A.J. around as they try and solve the case. Evan and Bryn are on a stakeout, and Evan uses the spy gear to meet a woman.moreless
The SIU tries to catch a man with ties to Nash's past, after he says he will set a bomb off unless Nash kills Joe. Cassidy, who is now a cop, is brought in to help, and so Nash can keep an eye on her. A new inspector, Antwon Babcock, is brought in to replace Evan. Joe and Inger are forced to move, and find a great house being sold for half its worth. Nick's memory continues to worsen.moreless
Two ex-military men steal evidence from a D.E.A. warehouse, and the SIU try and track them down. Harvey's suspicion of Antwon grows, and things get more complex when Antwon has a seizure when he is about to apprehend a suspect. Nick runs into an old friend and wants a date. He winds up having to set Nash up with her daughter, who has a secret. Joe has some issues with his home renovation.moreless
The SIU try and track down a psychotic man who kills people who are on their cellphones, as he believes they are out to get him. Nash and Joe take an off duty case of a ventriloquist who has been receiving threats against his dummy. Joe keeps having erotic dreams about Caitlin. While suspended from the SIU, Evan works as a bartender.moreless
Rachel is arrested for murder, and the SIU try and track down the real killer. Things get sticky when Nash catches her in lies. Joe tries to find a ringer to represent the department in an arm-wrestling contest.
Nash and Joe discover that someone is using their detective agency's name to stir up business for themselves, and that one of the impostor's clients is out to kill Nash. Cassidy and Rachel work a case of a college student who was murdered during a frat party. Harvey finds himself in the middle of a dispute between his neighbours, over whether or not their street should have a farmer's market.moreless