When the body of a VA psychiatrist is found tortured and deceased under a nearby overpass, the team is led to a suspicious religious leader with a substantial online presence. Meanwhile, OA builds a connection with Special Agent Zara Ushruf, who assists on the case.

When an FBI evidence locker is robbed, leaving behind a dead ERT agent, the team discovers a vigilante duo looking to take down a high-scale pedophile ring. Meanwhile, Isobel meets the new Assistant Director in Charge.