Season 6, Episode 1: Borrowed Time - Neal is held captive by Jim Booth, who seeks to join the Pink Panthers. Neal orchestrates a plan to infiltrate the syndicate for his freedom, leaving clues for Peter. Rebecca, aiding the FBI, dies attempting escape while in custody. Neal successfully auditions for the Pink Panthers, and Peter receives news that Elizabeth is pregnant.

Season 6, Episode 2: Return to Sender - Neal works to infiltrate the Pink Panthers for his freedom, secured by a legally binding contract. He's forced to collaborate with rival Matthew Keller, who is secretly an Interpol asset, to steal a valuable stamp. Peter helps Neal with the con. Ultimately, Neal's freedom contract is signed by the Attorney General, and Peter reveals Elizabeth's pregnancy.

Season 6, Episode 3: Uncontrolled Variables - Neal and Keller reluctantly partner on a Pink Panthers heist, manipulating executive assistant Amy. An Interpol betrayal complicates the operation. Keller reveals Neal's true identity to Amy, leading her to quit and move back to Iowa. Keller then warns Neal that the Pink Panthers will target his loved ones if he gains freedom.

Season 6, Episode 4: All's Fair - With the Pink Panthers silent, Peter and Neal investigate Mozzie's ex-wife, Eva, who he believes is conning her new fiancé. Mozzie, initially resistant to Peter and Neal's suspicions, eventually realizes Eva and her partner are setting him up as a fall guy for a heist. Despite this, Mozzie helps Eva escape for old times' sake. The episode concludes with Neal receiving unsettling news: the Pink Panthers know there's a mole in their organization.

Season 6, Episode 5: Whack-a-Mole - Woodford suspects a mole within the Pink Panthers and tasks Neal with identifying them as the crew plans a $500 million Federal Reserve heist. Interpol agent Luc is murdered, and Keller's machinations lead to another Panther's death. Neal devises an alternative, less violent heist plan involving pneumatic tubes. The episode concludes with Woodford pointing a gun at Peter, who has infiltrated the den as Neal's man.

Season 6, Episode 6: Au Revoir - Neal, Peter, and Keller execute a complex heist against the Pink Panthers. During the operation, Keller attempts to double-cross Neal, leading to a confrontation where Neal is seemingly shot. Peter pursues Keller and shoots Keller dead. A year later, Peter discovers clues, including a queen of hearts card, revealing that Neal faked his death and is now living freely in Paris.