In the conclusion of the two-part Season 4 finale, Red spins into motion a risky plan to save the task force and himself. Also: Mr. Kaplan launches the final phase of an assault on Red's empire; and Liz faces the biggest questions about her past.
In Part 1 of the two-part Season 4 finale, Red faces a siege on his criminal organization as he tracks a high-end thief who's enlisted by Mr. Kaplan for a shady assignment. Also, Aram faces a difficult choice when the task force's conduct is probed.
Liz becomes the target of a mercenary known as the Debt Collector, so Red turns to an unlikely source for help. Meanwhile, Ressler faces an unexpected complication in his efforts to stay ahead of Agent Gale's investigation.
Red assigns the task force to trail a Blacklister who can manipulate memories and Liz questions her own experiences. Also: Gale's investigation intensifies and Ressler gets a new lead regarding the disappearance of a Justice Department official.
Aram goes undercover as a hacker to identify an infamous criminal who designs, constructs and executes perfect crimes. Elsewhere, Tom expands his investigation into his childhood, and Red seeks the source of his compromised business operations.
Liz infiltrates an elite gang of female thieves as they prepare for their next heist, but she must first prove herself to the group's leader. Meanwhile, unexpected problems plague Red's operations, and Tom focuses on fatherly duties.
Allegiances are tested when an investigation centers on an international terrorist operating in America. Meanwhile, Aram faces consequences when his girlfriend hacks into the FBI computer systems, and Red cashes in on a favor.
Conclusion. Red pressures Dr. Shaw to locate a former patient. Meanwhile, Liz mulls over her connection to an increasingly desperate and lethal Alexander Kirk, and Kaplan comes to an important realization about the future.
Part 1 of 2. Red enlists the task force to hunt down a mysterious individual who provides new identities to on-the-lam criminals. Meanwhile, Alexander Kirk's medical condition worsens as Liz reaches out to Cooper for guidance.