Shaun lives a supremely uneventful life, which revolves around his girlfriend, his mother, and, above all, his local pub. This gentle routine is threatened when the dead return to life and make strenuous attempts to snack on ordinary Londoners.
Each Christmas, Santa and his vast army of highly trained elves produce gifts and distribute them around the world in one night. However, when one of 600 million children to receive a gift from Santa on Christmas Eve is missed, it is deemed ‘acceptable’ to all but one – Arthur. Arthur Claus is Santa’s misfit son who executes an unauthorized rookie mission to get the last present half way around the globe before dawn on Christmas morning.