Nate and Olivia are about to spend the holiday season in Mercy, Ohio. Olivia's hometown holds a lot of painful memories, but also the opportunity to finally get some closure. Jill Thompson has been released from prison and she wants to reestablish a relationship with her daughter. Olivia swore that she would never forgive her mother, but the choice to have a drama-free holiday may be out of her hands.
Just a few minutes after arriving in Mercy, a 13-year-old girl has gone missing. Gracelyn Hagger is best friends with their niece, Emma. She was one of the last people to see Gracelyn before she vanished. Nate and Olivia promise to help find the girl, even if it means delivering news that will break Emma's heart.