The FBI is on the hunt for a high-ranking Chinese spy, Wujing which Red claims has hired him to help decode a classified CIA transmission. Liz, posing as an FBI cryptographer goes with Red to decode the message while protecting US government secrets. Meanwhile, Liz proactively investigates Tom.

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

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

Liz infiltrates the blacksite and disarms the signal jammers to call in backup but runs into trouble along the way. The fate of Ressler hangs in the balance as Red tries to bargain with Anslo Garrick. Meanwhile, Tom becomes increasingly worried about Liz’ situation and the fate of Red is unknown.

Liz and the Task Force join Red on an international adventure in pursuit of a billionaire who moonlights as a high end art thief. Meanwhile, Dembe chases a lead and Tom seeks outside help in identifying the remains in the suitcase.

Liz and the Task Force hunt for an elusive criminal who will stop at nothing to destroy some of the world's most precious treasures. Meanwhile, a surprise encounter leads a cash-strapped Red toward a new business opportunity, and Tom takes action to investigate the bones in the suitcase.