When Liz is kidnapped by a man claiming to be her father, Red sets out to rescue her; the task force is shocked by the news that Liz is still alive.
Red, Tom and the task force team up to find a notorious bounty hunter who may know Alexander Kirk's next move; Liz tries to determine if Kirk is trustworthy.
Red and the task force hunt down Miles McGrath, a criminal incubator who finances crime for profit; Liz discovers more about her family.
Red directs Liz and the task force onto the trail of an eco-terrorist with a link to Alexander Kirk; Tom takes control of a situation.
Red embarks on an operation to intercept Alexander Kirk; the Task Force races to locate a killer targeting inventors of revolutionary technology.
Red and Liz see an opportunity to take down Alexander Kirk's operation after Kirk hires a mysterious group that specializes in hacking the most secure computer systems in the world.
Red directs the team to an individual who provides new identities to criminals on the run; Alexander Kirk's health worsens; Liz seeks guidance from Cooper.
Red needs Dr. Shaw to locate a former patient; Liz considers her relationship to an increasingly unpredictable Alexander Kirk; Mr. Kaplan comes to a realization about her future.
The allegiances of the task force are tested when a probe into an international terrorist operating on American soil is revealed; Aram must face the repercussions of his girlfriend hacking into the FBI computer system; Red pulls in a favor.
Someone leaves a diorama depicting a soon-to-be committed crime at Liz's doorstep; Red investigates a new business prospect.
Liz tries to prove herself to the leader of a group of female thieves so she can infiltrate the organization; Red deals with problems in his operations; Tom focuses on fatherly duties.
The task force chases an elusive assassin who kills by imparting a fatal disease on her victims; Red enlists Tom for an undercover operation inside his criminal organization.
The Task Force tries to find a sophisticated criminal who has been targeting Red's businesses; a surprising event sets Tom on the hunt for information about his past.
Aram goes under cover as a hacker to find a criminal who designs and executes crimes for a price; Tom expands his search for details about his childhood; Red tries to find the source of his compromised business operations.
After being given a dose of deadly poison, Red must find out which of his closest confidants betrayed him; Liz and the task force search for the toxin's designer in a desperate attempt to save Red.
After weeks of hunting for Dembe, Red and the task force finally get a lead on his whereabouts; Dembe takes a calculated risk.
Memories of the past set Red on a dangerous collision course with an enemy determined to destroy his criminal empire.
The task force chases a bounty hunter employed to go after Red's closest associates; Ressler takes on a new assignment with a former colleague.
Red sets the task force on the trail of a blacklister who has the tools to manipulate memories; Ressler receives a new lead on the disappearance of Justice Department official Reven Wright.
Red turns to an unlikely source for help when a mercenary known as the Debt Collector goes after Liz; Ressler faces an unexpected problem while trying to stay ahead of Agent Gale's investigation.
Red tracks a high-end thief enlisted by Mr. Kaplan for a mysterious assignment; Aram faces a tough decision when agent Gale goes to extreme measures in his investigation into the Task Force's conduct.
Red sets a dangerous plan in motion to save himself and the Task Force as Kaplan engages in the final phase of her assault on his criminal empire; Liz confronts the biggest questions about her past.