Red and Liz go under cover to stop an assassin known as The Freelancer from killing his next target; Ressler and a recently re-hired CIA agent try to protect Red from a distance; Liz wonders what she should do about Tom and the mysterious box.

The FBI is on the hunt for a high-ranking Chinese spy, Wujing which Red claims has hired him to help decode a classified CIA transmission. Liz, posing as an FBI cryptographer goes with Red to decode the message while protecting US government secrets. Meanwhile, Liz proactively investigates Tom.

While continuing her investigation into the truth about Tom, Liz testifies against drug lord, Hector Lorca. Later another witness is abducted when he is forced to testify against the dangerous drug trafficker. Red’s interest is peaked and he informs the team that the witness may have been taken by "The Stewmaker" a man responsible for hundreds of missing and presumed dead people. Meanwhile, in an unlikely twist of events, Red and Ressler must work together for the first time.

Red and the FBI try to stop a dangerous messenger (Robert Knepper) whose appearance is unknown; Liz is thrust into a kidnapping plot.

Tom claims he is innocent and wants to turn the box into the FBI; Red's next target is a beautiful and deadly corporate terrorist (Margarita Levieva).

The FBI searches for the man responsible for a chemical attack on a subway; Liz wants to avoid Red after he implicated Tom.

When Red reveals a new name, Liz learns of a plot to destroy the country's financial system; Tom helps Liz when a loved one falls ill.

Anslo Garrick, the newest person on the blacklist, tries to capture Red; Liz is caught in an elevator.

Liz infiltrates the blacksite and disarms the signal jammers to call in backup but runs into trouble along the way. The fate of Ressler hangs in the balance as Red tries to bargain with Anslo Garrick. Meanwhile, Tom becomes increasingly worried about Liz’ situation and the fate of Red is unknown.

A serial killer from Liz's past strikes again while Red hunts for whoever betrayed him.

Red informs the team that "The Alchemist" - a man who relies upon science to transform a person’s DNA - has been contracted to protect a well-known mob informant and his wife. As the team goes undercover to catch him, Liz finds herself on the hunt for an unlikely couple. Meanwhile Liz and Tom find themselves at another bump in their relationship and Ressler debates whether or not he should give his ex-girlfriend his blessing.

After a recent spate of abductions of babies from their mothers, Red informs Liz that the "Cyprus Agency" is the illegal adoption organization responsible. Coincidentally, Liz and Tom contemplate adoption of their own which fuels Liz to track down the organizations CEO, Owen Mallory.

Liz helps Tom adjust to the impending adoption; Red reveals a woman from his past is a target; Red convinces Liz to pull of a heist at the Syrian Embassy.

Red believes he knows who was responsible for a prominent prosecutor's 12 year disappearance; Red investigates the woman who tempts Tom.

One of Red's former associates, a crime lord, becomes the next target; Tom decides to confront Jolene.

After a cyber defense asset is stolen by a terrorist only known as Ivan, Red and Liz discover a cover-up; new evidence regarding Jolene's disappearance unravels some of the mystery surrounding Tom.

Red and the team search for a life insurance claim adjuster who talks people into becoming contract killers; Liz and Red try to uncover Tom's secrets.

As the team tries to protect a target of the Pavlovich brothers -- specialists in abductions -- Red has a job of his own for the duo; Liz patiently pursues the truth about Tom.

Red thinks the Kingmaker (Linus Roache), a strategist, is responsible when a politician in Prague is framed for murder; Liz uncovers a secret Red has been hiding.

After discovering the truth behind her father's death, Liz refuses to work with Red, just as his situation grows desperate.

Liz is forced to reunite with Red in order to track down Berlin.