To get to Zambia to gather leopard DNA and cure the outbreak, the team turns to an animal rights activist to escape the U.S. ahead of the authorities.
Once Mitch tells them that Delavane is working for Reiden, the team try to get their story out via Jamie's friend in the press. Meanwhile, Jackson and Chloe pay Delavane a visit, and Mitch and Abraham deliver the stolen medication to Clementine.moreless
The team goes to an American tourist island in Massachusetts to investigate an outbreak of rats that have already killed the crew of a cargo ship. Meanwhile, Mitch pays Clementine a visit and then prepares to trade the Mother Cell for his daughter's cure.moreless
The team investigate a bear attack in France, and Chloe reunited with her ex-fiancé. Meanwhile, Mitch discovers the next evolutionary step of the mutated animals, while the team prepares to hack Reiden's mainframe after Jamie is accused of Ben's murder.moreless
In Rio, Abraham tries to track down his friends, who are stalling for time with Gustavo. Meanwhile, Jackson and Ben find Jamie after the crash, and set out to find Evan Lee. In France, a woman is subject to a bizarre home invasion.moreless
While Mitch, Chloe, and Abraham travel to Rio de Janeiro to stop the government's bat extermination program, Jackson, Jamie, and Ben try to find a chemist who can connect Reiden to the animal attacks.moreless
The team travels to Mississippi and investigates the wolf attack on the prison. Mitch and Abraham try to capture a wolf, while Chloe, Jackson, and Jamie search the prison and meet FBI agent Ben Shaffer.moreless
While Jackson and Abraham travel to a remote island to find Robert's research, Jamie convinces Mitch to go to New Orleans with her to present the case against Reiden. Meanwhile, wolves launch an attack on a prison, and Gaspald shows Jamie the crime scene in Slovenia.moreless
Jackson rescues Abraham and talks with the local doctor--his mother Elizabeth--who confirms that the lions killed their victims as slowly and painfully as possible. In Slovenia, a British couple adopt a young boy and take him to the circus to see the tigers. And in Paris, Chloe meets with a mysterious man who offers her answers.moreless
Two fatal lion attacks, thousands of miles distant, are the first indications of a threat that could wipe out all humanity.
Savino and Sheriff Lamb team up to take down Porter Gainsley. Porter put Katherine in the hospital and Ralph is convinced he killed Marilyn. Jack decides to ask Mia to marry him.
The death of a local attorney triggers a series of events that puts Sheriff Lamb's badge at risk and puts Katherine in the hospital. Some new information could disclose the truth about Marilyn Lamb's unfortunate death.moreless
A murder suspect takes Mia hostage and demands ransom. When Gainsley reopens The Tumbleweed Casino, Savino plans to sabotage his business. Yvonne has second thoughts about her relationship with Dixon.
A bruised Violet accuses Dixon of assaulting her, leaving Katherine no choice but to arrest him. Savino has big problems after the body of a gambler is found in one of the Savoy suites.moreless
The district attorney starts to worry when Sheriff Lamb, Jack and Katherine decide to figure out how Savino skims money by using the phone tap in Savino's office. Dixon and Yvonne visit Violet in Hollywood. While attending a party, Yvonne gets to show off her voice. Mia's presumed dead mother, Lena, shows up at the Savoy.moreless
Following the death of her father, Mia doesn't know whether to trust Savino or Jack. And when Jack confronts Savino about setting him up to kill Rizzo, the two come to blows. Sheriff Lamb is prevented from doing his job when the FBI interferes. Dixon is head over heels for Hollywood starlet Viola. Tommy and Dixon discover Yvonne's singing talent.moreless
When a Hollywood producer and his starlet breeze into the Savoy, Dixon is hired to keep an eye on her.
Jack hides important information from Mia and Ralph.
Rizzo blindsides Jack and grills him about Mia. Dixon learns the girl he saved from drowning was poisoned. Savino and his crew are stuck overnight in the desert.
A former flame of Sheriff Lamb's shows up asking for help. Savino deals with the snitch inside his casino.
A man bent on revenge kidnaps Sherrif Lamb. Savino and Rizzo must deal with a rival mob. Katherine and Laura form a new partnership.
Dixon goes undercover at the Savoy after a series of robberies while Sheriff Lamb and Jack investigate the death of the biggest contractor in Las Vegas.
Sheriff Lamb, Jack and Dixon investigate the murder of a young Vegas showgirl. As the investigation proceeds, they begin to suspect that the case hits close to home for Katherine. When the Savoy lands a whale, Savino tries to use him to lure other high rollers into the casino.moreless
Rizzo causes difficulties for Savino when he hires Diane Desmond to sing at the Savoy. Diane just happens to be Savino's ex-mistress. Sheriff Lamb and the military police join forces when clues to a murder lead to a nearby Air Force base.moreless
The tables are turned when Sheriff Lamb must protect Savino after Milwaukee puts out a hit on the mobster.
Savino interjects himself into local politics when he decides to groom mob-friendly Mayoral Candidate George Grady. Sheriff Lamb looks into the murder of a local dentist who had a gambling addiction.
When the son of a member of the Nevada Gaming Commission is kidnapped, Sheriff Lamb suspects Savino's behind it. Savino's wife, Laura, comes out to Vegas with promises that their family will be safe, just as a Milwaukee hit man lands in town.moreless
Savino and the local Milwaukee mob both set their sights on acquiring the Tumbleweed Casino which brings out a taste of the real Vegas heat. Sheriff Lamb's investigation into the hit-and-run killing of a casino maid reveals an unlikely connection to one of the town's wealthiest businessmen.moreless
Sheriff Ralph Lamb investigates the murder of a craps dealer from one of the casinos.