Zara Taylor is a pillar of the community, along with her loving husband, Brian, and teenage step-daughter, Audrey. One night she stops to pick up groceries and walks into a two-man robbery with a kid held at knifepoint. Using her martial arts skills, she thwarts both perps. Nationwide news coverage of Zara’s heroics follows. A week later, a nervous-looking woman, Nancy, shows up at Zara’s office. After seeing the news, she wants to confirm Zara’s identity—she calls her “Kate”—citing their shared past. Zara denies ever knowing Nancy and asks her to leave.