Red and Liz work with the taskforce to stop a negotiator who has resurfaced to unite two rival crime families. Tom reconnects with a former flame.

As Reddington and the task force close in on the person responsible for Liz's death, a shocking betrayal leaves them racing to save one of their own.

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 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.

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.

With his criminal empire in ruins, Red enlists Liz in a plan to earn cash and deliver a new Blacklister to the Task Force.

Tom goes missing and Liz desperately retraces his steps to find him; Red's hunt for the suitcase of bones leads to lives being changed forever.

As Liz investigates new details in a cold case from her early work as an FBI profiler, she explores her darker impulses in therapy with Dr. Fulton. The Task Force takes action to bring down Tom's killers within the legal system, while Red takes a different approach to closing in on Ian Garvey.

Liz and Red face off in a climactic race to find a Blacklister in possession of the duffel bag of bones, forcing the truth about the bones to finally come to light.

Red presents the Task Force with a Blacklist case searching for a plastic surgeon who creates new identities for wanted criminals. Liz and her sister, Jennifer, secretly investigate the events that took place the night the real Raymond Reddington died.

When Red is sent to a federal medical institution following his request to the court for a psychiatric evaluation, Liz and Jennifer use his time away to search for a Blacklister they believe may have valuable information about Red's past.

Liz and Jennifer's pursuit of a lead on the truth about Reddington puts them in unexpected danger. Red steps in to help mediate a brewing prison gang war.

Red directs Liz to investigate a secret organization of assassins hired by global intelligence agencies to eliminate former agents, a case with ramifications that will change the task force forever.

Liz and Ressler investigate a Blacklister who offers to erase gambling debts -- at a deceptively high price. Dembe grows concerned as Red tests loyalties of their business associates in search of the individual who turned him in to the police.

As the president's true plan comes into focus, Liz and the task force fight to avert disaster. Red meets in secret with a man who holds information about his past.

After being abducted by Katarina Rostova, Raymond "Red" Reddington finds himself alone in hostile territory unsure of who, if anyone, he can trust. With few leads to go on, Liz and the Task Force venture into unknown danger as they race to find him.

With the help of the Task Force, Red tracks a gifted art forger who has thwarted his plans to sell stolen pieces. Aram’s love life becomes increasingly complicated. Liz and Ressler confide in each other.