The Avengers gather to celebrate their latest victory, but their celebration is quickly interrupted by the mysterious disappearance of Black Widow’s father, Red Guardian. As the Avengers investigate, they discover that Red Guardian isn’t the only one missing when they meet a dangerous new foe quite unlike anything they’ve ever encountered before.
When the Queen of the Trolls, Poppy, finds out that the Bergens do not have holidays, she enlists help from her friends, Branch and the Snack Pack, to help her bring holidays to the Bergens.