Unconventional heroes band together against an army of living corpses reanimated by a dark force in a cadaver lab on Christmas, as the undead rapidly recruit new members.Unconventional heroes band together against an army of living corpses reanimated by a dark force in a cadaver lab on Christmas, as the undead rapidly recruit new members.Unconventional heroes band together against an army of living corpses reanimated by a dark force in a cadaver lab on Christmas, as the undead rapidly recruit new members.