With Hickman's nemesis Genovese in handcuffs, things are looking up for the team. Then Louis disappears, and Dimitrov finally presents a deadly ultimatum.
The team, at first baffled by the gang's tactics, begins to put the pieces together. Realizing the prison psychiatrist is in on the breakout, Hickman alerts the team. As the mystery unfolds, tragedy for the team also follows.
An abandoned car in Poland and a body found in Germany involves the team in a brutal fight club. The only way to crack it will be to risk becoming its victims.
Anne-Marie is missing, Sebastian's computer has been hacked, Hickman is framed for murder. It looks like the bad guys are somehow staying one step ahead of the team.
The team confronts teen suicides resulting from extreme Internet cyber-bullying as they desperately try to find the next victim and save him from killing himself.