OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists.

When an officer is shot dead at a pawn shop along with the store’s owner, the team tries to figure out why a young, recent Ivy League dropout is tied to the crime.

The abduction of a young woman leads the team back to a cold case from 18 years ago, which pushes Isobel to reconnect with her old partner Jake and take another shot at solving one of her first cases in the bureau.

When a chaotic campus protest turns deadly, the team is called in to help quell the mayhem and track down the murderer. Meanwhile, Jubal is concerned when Tyler is detained along with a group of student protestors.

When a gunman opens fire at a homeless shelter in Astoria, the team is led toward a killer with connections to a Mexican cartel.

After two women are brutally murdered via napalm, Maggie and OA are led to a dating site where they discover a group of scorned users who are targeting women who reject them.