The Hero Squad, four superhero friends, decide to make amends and invite their arch-enemy, the nefarious criminal mastermind Nikolai Oshgoshbgoshnikov, over for a Christmas party and caroling. Little do they realize, Nikolai is secretly plotting against the heroes with special eggnog designed to turn them evil. Meanwhile, an old roommate from Nikolai's past, the gargantuan bovine supervillain Angus Khan, has returned with his own plan to rule the world. The Hero Squad have a lot on their plate: Not only must they deal with the wrath of one very angry cow, as well as their arch-enemy and his terrible new invention the Doohickey of Doom, they also face a split from within. It seems that Iron Lung has accidentally ruined his sister Slapshot's dreams of playing hockey in the Olympics, leaving Slapshot angry enough to quit the team forever. Can the Hero Squad heal the scars between them long enough to pull together in one last stand against the most powerful threat they have ever faced? Will the team be defeated once and for all, or will help from an unexpected ally give them the edge they need for another victory? Find out in this large-scale adventure that can be presented by small-scale theaters. About 60-70 minutes.