The Stupidest Angel

What happens when the dumbest angel in heaven is tasked with granting a Christmas miracle to one special child? What if that child thinks he just saw Santa Claus get killed with a shovel and begs the angel to bring Santa back to life, and the angel accidentally raises all of the dead in the graveyard? Suddenly, the residents of Pine Cove, California find themselves trapped inside the Santa Rosa Chapel with an El-Nino fueled storm cutting off all communication and a horde of brain-hungry zombies (led by an angry dead man in a Santa suit) pounding on the doors.