Having been abandoned by their son Josh to the Wastelands almost seven years ago, Owen and Teah Lancey have made a new life for themselves with two orphaned children they have raised as their own. Owen has gotten older. The signs of neural decay have just begun, but he is intent on making Christmas the best he can for his family. A visitor arrives. Josh's wife, Gareth, has come asking for help. Josh has been sentenced to die in absentia. Owen has become too weak for these sorts of rescue missions. Gareth needs Teah's help. Though she cannot trust Gareth, Teah sets out north with the young woman to rescue her missing son.