Red and Liz go under cover to stop an assassin known as The Freelancer from killing his next target; Ressler and a recently re-hired CIA agent try to protect Red from a distance; Liz wonders what she should do about Tom and the mysterious box.

Tom claims he is innocent and wants to turn the box into the FBI; Red's next target is a beautiful and deadly corporate terrorist (Margarita Levieva).

The FBI searches for the man responsible for a chemical attack on a subway; Liz wants to avoid Red after he implicated Tom.