The slacker heroes have been entrusted with immortalising the memories of the town for ever, in a time capsule. It's an apparently simple task, but one that they seem destined to mess up. As the ineptitude unfolds, in a distant galaxy, on an ice planet called Klung, three villainous aliens with super powers are banished into space for crimes too abominable to mention.

These two worlds collide, courtesy of a giant catapult and a funny-looking cuddly toy, resulting in chaos in Klangbury, and a punch-up involving Father Christmas and the tooth fairy.