François Arnaud

Instead of leaping home as expected, Ben finds himself in 1978 aboard a top-secret military flight, transporting mysterious cargo.

Jane and Weller go undercover as a world-class assassin couple to prevent deadly information from getting into the wrong hands. The intimate assignment draws them closer than ever. Meanwhile, David embarks on a solo mission to win Patterson back, and Carter clashes with Mayfair over how to handle a dangerous individual.

One of Jane's tattoos sends the team to a remote location where they find themselves face to face with a dangerous criminal (guest star Lou Diamond Phillips) in a case that puts the strained relationship of Jane and Weller to the test and threatens to expose Mayfair's secrets. Meanwhile, Patterson breaks the rules to solve a tattoo puzzle.

Jane reels from a series of massive revelations about her tattoos and grapples with whether to trust Oscar. Meanwhile, a tattoo leads the team to a shocking discovery in the Black Sea.

An unlikely collaboration forms when Jane and Weller reach out to a former target in order to hunt down a menacing international criminal. Meanwhile, Jane faces a tough decision when a dubious order from Oscar may endanger Weller.