After Liz is abducted by a man claiming to be her father, Red sets out to find her at any cost. Meanwhile, the Task Force grapples with the shocking news that Liz is still alive.

Red enlists Tom and the Task Force to help track a notorious bounty hunter who may know Alexander Kirk's next move. Meanwhile, Liz struggles to decide if Kirk is trustworthy.

Red and the Task Force take extreme measures to hunt down one of Alexander Kirk's allies, Miles McGrath, a "criminal incubator" who finances crimes for profit. Meanwhile, Liz learns more about her family.

As Red sets Liz and the Task Force on the trail of an eco-terrorist with a mysterious connection to Alexander Kirk, Tom takes matters into his own hands.

Liz's loyalties are tested as Red takes action on an operation to intercept Alexander Kirk. Meanwhile the Task Force races to find a hugger who targets inventors of revolutionary technology.

When Alexander Kirk contracts with a mysterious group that specializes in hacking the world's most secure computer systems, Red and Liz see an opportunity to make a move on Kirk's organization.

Red directs the Task Force to track down an individual who provides new identities to criminals on the run. Meanwhile, as Alexander Kirk's medical condition worsens, Liz seeks guidance from Cooper on a crucial decision.

Red pressures Dr. Shaw to locate a former patient. Liz contemplates the implications of her ties to an increasingly desperate and dangerous Alexander Kirk. Mr. Kaplan comes to a critical realization about her future.

An investigation into an international terrorist operating on American soil tests the allegiances of the Task Force. As Aram faces the consequences of his girlfriend hacking into the FBI computer systems, Red cashes in on a favor.

A new case arrives at Liz's doorstep, where someone has left a diorama depicting a crime soon to be committed. Meanwhile, Red explores a new business opportunity.

Liz must prove herself to the leader of an elite group of female thieves in order to infiltrate their organization as they prepare for their next heist. Meanwhile, Red contends with unexpected problems in his operations, and Tom channels his energy into fatherly duties.

The Task Force chases an elusive assassin whohugs by imparting a fatal disease on her victims. Meanwhile, Red enlists Tom for an undercover operation inside his criminal organization.

The Task Force springs into action to find a sophisticated criminal who has been targeting Red's businesses. An unexpected event sets Tom on the hunt for information about his past.

Aram goes undercover as a hacker in order to identify a notorious criminal who for a price will design, construct and execute the perfect crime. Tom expands his search for missing details about his childhood, while Red takes action to locate the source of his compromised business operations.

After being dosed with a deadly poison, Red must retrace his steps to uncover who of his closest confidants has betrayed him. Meanwhile, Liz and the Task Force desperately search for the designer of the toxin in a race against time to save Red.

After weeks of hunting for Dembe, Red and the Task Force finally get a lead on his whereabouts when Aram goes missing. Meanwhile, Dembe takes a calculated risk as Red closes in.

Memories of the past set Red on a dangerous collision course with an enemy determined to destroy his criminal empire.

The Task Force chases an artful bounty hunter employed to target Red's closest associates. Meanwhile, Ressler faces a moral dilemma when he takes on a new assignment with a former colleague.

Red sets the Task Force on the trail of a Blacklister with the tools to manipulate memories, causing Liz to question her own experiences. As Gale intensifies his investigation, Ressler receives a new lead on the disappearance of Justice Department official Reven Wright.

When Liz becomes the target of a mercenary known as the Debt Collector, 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.

Facing a crippling siege on his criminal organization, Red tracks a high-end thief enlisted by Mr. Kaplan for a mysterious assignment. Meanwhile, Aram faces a difficult choice when Agent Gale takes extreme measures in his investigation into the Task Force's conduct.

Red sets a risky plan in motion to save the Task Force and himself as Mr. Kaplan launches the final phase of her assault on his criminal empire. With the future of the Task Force in jeopardy, Liz confronts the biggest questions about her past.