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.
After a police officer is murdered, Patterson unlocks a disturbing tattoo that appears to have predicted his killing, and the team chases a violent clue trail to stop further attacks. Mayfair reveals secrets from her past to Weller, seriously testing their relationship.
One of Jane’s tattoos sends the team to a remote location where they find themselves face to face with a dangerous criminal in a case that puts Jane and Weller’s strained relationship to the test and threatens to expose Mayfair’s secrets. Meanwhile, Patterson breaks the rules to solve a tattoo puzzle.
When an assassination leads the team to a dangerous app that allows criminals to track government vehicles, they have to work with the app’s surprising creator to take it down. Jane and Weller attempt to keep their relationship professional. Zapata struggles with a moral issue.
After a seemingly straightforward hostage situation turns out to have deeper international implications, the CIA and FBI find themselves racing against each other to apprehend the same criminal with a dark history. Carter expresses concern about Jane’s trustworthiness, causing friction with Mayfair and testing Reade’s loyalty to the team. Meeting Weller’s family proves overwhelming for Jane as she grapples with her identity.
Patterson and her puzzle-expert boyfriend, David, decode a tattoo clue that sends the team to the Centers for Disease Control (CDC). While at the CDC, the team discovers a hidden message on Jane’s body that uncovers a plot that could have catastrophic global consequences. Meanwhile, Jane and Weller grow closer.
An infamous crew of thieves almost pulls off the perfect jewel heist, except one thief – with a Navy SEAL tattoo identical to Jane’s – is captured at the scene of the crime. Does this man know Jane? Meanwhile, Jane receives a visit – and an ambiguous warning – from the mysterious bearded man from her first memory as Weller and Mayfair struggle with Jane’s role on the team.
The team unlocks a cryptic tattoo that points to Major Arthur Gibson, an Air Force pilot with a painful past and a lethal agenda. Jane continues to search for clues to her identity and is haunted when flashes of a disturbing memory force her to question her past. Meanwhile, Weller thinks he might know Jane’s true identity.
A beautiful woman, with no memories of her past, is found naked in Times Square with her body fully covered in intricate tattoos. Her discovery sets off a vast and complex mystery that immediately ignites the attention of the FBI, which begins to follow the road map on her body into a larger conspiracy of crime, while bringing her closer to discovering the truth about her identity.