Messenger Robert Knepper is on the run but Red and the FBI don't know his appearance. Elizabeth ends up in the middle of a kidnapping plot.
Ressler and Red team up for the first time when another criminal on the list, The Stewmaker, makes a witness against a drug lord disappear.
As Elizabeth starts investigating Tom, Red and the FBI work to find Chinese spy who has previously worked with Red.
Assisted by a CIA agent and Ressler, Red and Ekizabeth go after "The Freelancer" to prevent a new murder. Also, Elizabeth struggles with what to do about Tom's box.