FBI hostage negotiator Theresa Foley (Gail O'Grady) is adept at balancing her family life with her difficult line of work. At home, she's a dedicated mother of two with a loving husband (Michael Bowen) who's a fellow FBI agent. At work, she's a skilled professional--but things take a turn for the worse when a criminal she took down in a failed bank heist returns from her past vowing revenge. The situation becomes a strain on her marriage, and soon the only person standing between Theresa and the villainous madman is Danny (Brian Bloom), her former partner--but will he be enough to protect her?