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.

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).

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.

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.