A gunman shoots at a car, killing Corey and putting Holly into a coma while Savitri witnesses it. When Holly wakes up, she is determined to find Corey's killer no matter the cost, worrying Savitri. The FBI starts a program using exceptional teenagers to solve cold cases, recruiting 17-year-old Cassie who can read people by small details. Shin Dong-hyuk is the only known person born in a North Korean prison camp to escape, having witnessed executions of his family members and being raised as a snitch in the highest security prison in the highest security state.