Red and the FBI try to stop a dangerous messenger (Robert Knepper) whose appearance is unknown; Liz is thrust into a kidnapping plot.

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.

When Red reveals a new name, Liz learns of a plot to destroy the country's financial system; Tom helps Liz when a loved one falls ill.

Anslo Garrick, the newest person on the blacklist, tries to capture Red; Liz is caught in an elevator.

A serial killer from Liz's past strikes again while Red hunts for whoever betrayed him.