FBI

After two jurors for a high-profile mafia trial are gunned down, the team jumps into an organized crime investigation until it is discovered that the jurors may not have been the intended targets at all. The case becomes personal for Scola when he learns that one of his former drill instructors from the military academy he attended may be linked.

When a passenger train is hijacked and rerouted while at high speed with an unarmed OA and Gemma on board, the team races to wrest control away from the unhinged perpetrators and prevent a catastrophe.

As Maggie and the team search for New York's latest serial killer, the copycat method used by the murderer forces Maggie to seek help from Ray Distefano, the serial slasher she put behind bars.

When an undercover FBI agent is killed in the field, the team makes the unnerving discovery that the identities of multiple undercover agents have been compromised, including Maggie who has been actively working to infiltrate an eco-terrorist group. Meanwhile, the team enlists the help of Special Agent Dani Rhodes, whose cover was also blown, to not only save their own but to aid in uncovering who was behind the leak.