For the season four finale, Danny's investigation into an off-limits case gets him placed on modified duty. He then realizes he's uncovered information that someone wants to keep hidden which he passes on to Frank. Frank becomes concerned with the sheer size of the case and how far it reaches internally.moreless
The murder of an esteemed college professor caught up in a dubious scholarship program is investigated by Danny and Baez. Danny finds out he's being investigated by the District Attorney for ethical and procedural violations.moreless
Danny and Baez investigate when the latest victim of a "knockout game" is an expectant mother. Frank struggles with a decision to promote an officer after he determines it might look like he's giving the officer preferential treatment.moreless
The current case of a kidnapped girl brings back memories of a similar unsolved case that Danny worked on years ago. Frank and Kelly Peterson are at odds about disclosure of information on a program that lets Frank direct intelligence officers overseas.moreless
Francis's relationship Tusk becomes strained as tension with China escalates. Meanwhile, he must face down the Senate Republicans.
While Francis is forced to stay in the Capitol with Donald Blythe, Claire gives an explosive interview.
While the Underwoods grow closer to the Walkers, Francis and Tusk declare war.
As well as having to deal with Tusk, Francis confronts Linda Vasquez. Meanwhile, Claire becomes a key influence on Tricia Walker.
Tusk engineers a scandal for the Underwoods, which even draws in Freddy.
Francis discovers that he has been shut out and Claire finds that she must sacrifice something dear to her. Meanwhile, Stamper attempts to get back on top of things.
With an outraged nation, Francis could have to step down. Meanwhile, Claire experiences the consequences of their actions and Stamper rushes to tie up any loose ends.
Dr. Ellen Sanders and her family are taken hostage by a rogue FBI agent who threats to killl them if she doesn't kill the President in an upcoming surgery she will be performing on him.moreless
Danny and Erin collaborate on a cold case involving a girl who was attacked by her boyfriend who was never convicted. A friend of Jamie's sues Danny's friend after an injury at a pick-up basketball game.moreless
A Hasidic community is under investigation by Danny when the successor named as Hasidic Grand Rebbe is murdered. Henry reveals a family secret to Frank.
The Reagans unite behind Danny when he's arrested after a stop of his vehicle reveals a bag of cocaine in the trunk.
Jessica Barnes, the daughter of wealthy parents, enters rehab for drug abuse. While there, she turns 18 and, against doctor's orders, leaves to join a farming commune. She also begins to withdraw large sums of money from her six-figure trust fund, giving it to the farm's leader. Stark & Rowan intervene to end the flow of funds and to get her out of the commune. Meanwhile, Martina confronts Tommy about rumors that he helped her get her job.moreless
Nolan and Martina take the case of Ed Koneke, whose young daughter became sick from carbon ethylene in the groundwater. A subsequent class action lawsuit against a local chemical plant is going nowhere and Ed can no longer afford the medical bills. But when Ed takes an off-hand remark by Martina literally and punches the chemical company's CEO in the face, he finds himself on trial for assault while Martina is called as a witness for the prosecution.moreless
Donovan assigns Martina and Nolan the case of Penelope Hewett, who is acting as a surrogate mother for her sister, Emma. Emma is in a coma due to a recent domestic accident and her husband, Mason, has designs of taking the soon to be born child to Paris. On the home front Martina helps her sister, Deb, who is falsely accusing the neighbors of removing a tree in her family's back yard.moreless
While performing the first year's task of opening the jail mail, Martina comes across a letter from Hannah Atwood, a former client for whom Donovan and his team used the insanity defense in order to keep her out of jail for manslaughter. Now on new medication, Hannah insists that she is innocent and remembers some facts from the night in question.moreless
Martina Garretti makes a strong impression upon her boss, Donovan Stark, after speaking out during a company meeting. In turn, she is given a chair on a new murder case involving the brutal murder of a college professor. Back at home, Martina has problems of a different nature, such as her niece's quest for a new tattoo, that are somehow just as dramatic as her day job.moreless
When a suicidal man tries to jump from a high-rise building, White House and Jackpot do their best to talk him down. After a minor is implicated in a hate crime, Lazarus and Tonya look for the parents. Kenny and Ahmad must deal with the owner of a missing dog.moreless
After a horrible car crash, Jackpot and White House rush to get a pregnant woman and her husband out of a burning car. Kenny and Ahmad get a coveted assignment with a veteran detective. Lazarus and Tonya are charged with guarding a PCP lab that was raided.moreless
Amongst the bedlam of a Harlem block party, Kenny and Ahmad look for a suspected rapist. Unearthed human remains are found by White House and Jackpot.
When a man accuses an Ivy League student of robbing him, Kenny and Ahmad learn there's more to the story. A young man makes friends with Jackpot and White House. Tonya tries to help a couple being harassed by teens.moreless
Ahmad makes a quick decision when he and other off-duty cops are trapped inside a bar when robbers hold the place up.
While questioning a man who prevented a bank robbery, White House and Jackpot come across a secret. Kenny's father makes an appearance at the precinct and the Shannon bar thug meets up with Lazarus again.moreless
U.S. Marshal Chris Mansanto loses his partner in a shootout with underworld crime lord Vargas. While dealing with two new partners, Chris discovers that he has to rehabilitate Vargas, who ended up brain damaged. Until Vargas understands how evil he is, Chris can't kill him.moreless