While Emily Byrne is struggling to piece together her past, Special Agent Nick Durand is assigned to investigate a terrorist attack in the middle of Boston.
Nick and the team are searching for the person who attacked the Federal Annex. Emily's fragile balance is threatened by a shadow from the past who emerges and haunts her.
Emily is hunting down a serial killer who's going after people close to her, as she teams up with Special Agent Cal Isaac.
Emily and Cal's investigation leads them toward some dangerous suspects. Nick is making progress in his pursuit of the Federal Annex attacker.
Emily finds an important clue, and Nick's work with a notorious prisoner becomes deadly.
As Emily and Cal travel to Moldova to find the Fentanyl Killer, they realize that their mission is riskier than they've imagined.
While Emily and Cal are still in Moldova, Nick tries to accept a major lie.
Back in Boston, Emily discovers a powerful secret that ties Rex Wolfe to her mysterious captivity.
After she's declared dead in absentia, an FBI agent must prove her innocence when she becomes the prime suspect in a series of murders.
The uncovering of Oduwale's killer reveals a shocking betrayal to Emily along with it.