The LAPD assigns heroic cop Kyle Craig to pose as Frank Rourke's trainee to spy on him and report his questionable methods. They form an uneasy alliance that changes their lives.
Kyle is concerned that Frank's rogue tactics will put the life of a kidnapped girl at greater risk when a former member of the Amazonian Guard gets involved.
The rift between Kyle & Frank grows when Kyle refuses to adhere to one of Frank's morally ambiguous rules, but the pair must put aside their differences when they learn the notorious hitman EL CUCUY is targeting members of the Russian mob in Los Angeles .
When Frank's longtime friend and informant is killed by yakuza assassins, his quest for revenge jeopardizes an FBI agent's operation against the same killers.
An investigation into weapons trafficking becomes personal for Tommy when an old friend becomes connected to the case. Also, Lockhart demands to see results from Kyle's investigation into Frank's actions, leading Frank to reveal surprising information to his trainee.
Kyle's morals are put to the test when Frank involves him in a plan to take down a criminal defense attorney who has been helping his clients eliminate witnesses.
The hunt for a father-and-son crime team becomes personal for Frank, who is forced to face the parallels between the duo and his own childhood as the son of an outlaw.
