Queen Poppy and Branch make a surprising discovery — there are other Troll worlds beyond their own, and their distinct differences create big clashes between these various tribes. When a mysterious threat puts all of the Trolls across the land in danger, Poppy, Branch, and their band of friends must embark on an epic quest to create harmony among the feuding Trolls to unite them against certain doom.

When the eternally optimistic Poppy, queen of the Trolls, learns that the Bergens no longer have any holidays on their calendar, she enlists the help of Branch and the rest of the gang on a delightfully quirky mission to fix something that the Bergens don't think is broken.

Lovable and friendly, the trolls love to play around. But one day, a mysterious giant shows up to end the party. Poppy, the optimistic leader of the Trolls, and her polar opposite, Branch, must embark on an adventure that takes them far beyond the only world they’ve ever known.