A thousand years ago the world completely collapsed. War, famine, and greed killed off the human race. Not much remains except for the mutants, scum, and robo-people. Humanity is a long-lost notion. Everyone must kill to survive. Even Santa.

在一个圣诞节的假期里，一个小男孩的圣诞愿望清单因拼写错误误发至邪恶的杰克·布莱克手中，从而引出一系列的浩劫和混乱。小男孩和家人们面临着尽可能修复这场混乱的挑战，他们能否在圣诞节到来之前使一切恢复正常？