After the monstrous Bergens invade Troll Village, Princess Poppy, the happiest Troll ever born, and overly-cautious, curmudgeonly outcast Branch set off on a journey to rescue her friends. Their mission…

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…