The team keeps trying to infiltrate the drug-smuggling ring in order to get to a terrorist. Meanwhile, Alex is offered a promotion in Miami and Ty keeps struggling with his divorce.
Carter, Dean and Jaimie go undercover to catch two brothers that use a flower import business as cover to smuggle drugs. Meanwhile, Dean asks Jaimie out on a date and Ty has second thoughts about his divorce.
The team goes undercover to find a militia leader planning to a assassinate a federal judge. Meanwhile, Ty's extracurricular activities start affecting his job performance.
The team must go undercover into a local casino in order to investigate the murder of a law-school student with a gambling problem whom's body hasn't been found. Meanwhile, Alex has concerns about the risks Jaimie takes with their target.
Carter goes undercover as a porn king that wants to expand his business into pharmaceuticals in order to bust the head of an important Mexican drug cartel . Meanwhile Dean gets involved in a complicated relationship with a drug dealer's daughter.
Carter and his team go undercover to catch a local crime lord, but they must work along the FBI when this sting operation crosses paths with an FBI investigation.