It's just before Christmas, and Stine (9) arrives in Cobbler street all by herself. There she seeks shelter at Shoemaker Andersen's place, a grumpy old man who just wants to be left alone. Their meeting changes everything for the both of them.

The three thieves Kasper, Jesper and Jonathan lives together with their always hungry lion in the little town of Kardemomme town, the home to a fair but kind police officer, and the strict Aunt Sofie.

When a former childhood friend crashes Sebastian's bachelor party and makes it all about himself, only an alien invasion can make them put aside their bad blood and reunite as the kick-ass laser-tag duo they once were.