A manic-depressive mess of a father tries to win back his wife by attempting to take full responsibility of their two young, spirited daughters, who don't make the overwhelming task any easier.

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.