Driven by a desire for a better life for his son, a man once known for his daring exploits as a high-line thief in Boston attempts to leave his past behind. Meanwhile, Mary and Marshall are consumed by the pursuit of the individual who so n…

Mary first encountered Marshall in 2003 during the onboarding of lovers Claudia Tobin and Henry Doer into the WitSec program. It remained uncertain which pairing held more promise: Claudia and Henry’s, or Mary and Marshall’s.

Agent Wade Guthrie of the ATF was shot and left for dead by Jasper Malone, a gun trader. He awoke from a three-year coma to a world irrevocably altered.

Mary and Marshall made a concerted effort to persuade FBI Agent Mike Faber that his informant should enter the Witness Security Program. Despite their earnest appeals, the informant steadfastly refused their offer of protection, and found h…

For Mary, her newest witness is experiencing love for the very first time. But as the unfamiliar emotion overwhelms him, Mary finds herself racing against time to prevent him from channeling his intense feelings into a devastating act of de…

Mary endeavors to ease a recently paroled man’s transition to freedom, a world he has not known in thirty-eight years. Meanwhile, Marshall lends a hand when one of Mary's witnesses withdraws from their cooperation.

Mary’s newly identified witness is implicated in a mortgage fraud scheme, representing a crucial connection for FBI Agent Faber’s investigation.

During a joint operation to evade capture, Marshall is observed and assessed by his father, Geoff Pierson, in the field. Meanwhile, Mary encounters Brandi’s clandestine associate.

She yearned for a life beyond her family, a life free from the suffocating grip of their world of organized crime. Yet, a hidden truth from her past threatened to unravel her hopes, casting doubt upon her very qualification for the protecti…

Mary’s progress is hampered by a witness with Asperger's, a person incapable of social niceties and utterly incapable of deceit. This witness proves particularly problematic because he steadfastly refuses to implicate Mary’s closest confida…

Mary assists her newest witness, a homeless man grappling with the complexities of the program, in his quest to locate his biological parents. However, this search threatens to unravel unforeseen difficulties. Meanwhile, Scott’s request for…

Mary watches over a teenage witness, a girl whose parents, consumed by their own struggles, offer her little attention. Marshall suspects the witness may have betrayed his brother. And Brandi cares for Scott after he is assaulted.

The priest, having witnessed the brutal slaying of a parishioner, would find himself compelled to relinquish the sacred calling that defined his life in order to seek refuge within the walls of WITSEC.