Nick

A team of heroes must stop Loki and Ymir from stealing Santa Claus' power and taking over the world! Rocket and Groot are also after Santa for their own reasons. Heroes, villains, bounty hunters, and elves clash in an epic quest with the fate of the holiday at stake.[3]

From IMDB: The Marvel Heroes unite to try and stop Loki and the frost giant Ymir from conquering the world as the duo try to steal Santa's powers to do so.