Red continues to battle Berlin and faces a new threat from a man named Lord Baltimore. An important person comes back from the past into Red's world. Meanwhile, Liz tries to move forward with her life after her showdown with Tom.

Agents Keen, Ressler and Cooper pursue an eco-terrorist cell in search of a destructive weapon. Meanwhile, Liz tries to lose her guardian. Elsewhere, Red uses manipulation to pursue someone close to his heart.

When a mutilated corpse washes ashore, Agent Liz Keen consults Red over what he knows about the deadly underworld of wildlife poachers. Meanwhile Agent Donald Ressler develops a dangerous habit.

Liz struggles to keep her secret from unraveling.

The task force tries to save Red when he's arrested and taken to a secret detention facility. At the facility, Red tangles with a thief with whom he shared a complicated history.

FBI boss Cooper tries to rescue his team in the wake of chaos at a detention facility. Elsewhere, thief Luther Braxton attempts to attain confidential information.

The task force must rescue an undercover CIA agent who was kidnapped by separatists in Uzbekistan; Red thinks they are up against a dangerous past associate known as Ruslan Denisov.

A former paramour involves Reddington in a deadly game with a wealthy and powerful family dynasty whose ill-begotten fortune was amassed from an underground auction of human and material contraband. Meanwhile, Tom takes on a new mission.

The task force tracks a scientist who abducts disabled patients to conduct experiments on immortality. Now back in Washington, DC, Tom scrambles to save himself from new enemies.

As Red fights for his life, he pleads with Liz to track down a key figure from his past with knowledge of the Fulcrum.

Liz discovers she's been framed by The Cabal, prompting Red to tap into his connections to clear her name. Also: Cooper receives stunning news; and the task force is plagued by trust issues.