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 is full of adventure and mishaps, as this mismatched duo try to tolerate each other long enough to get the job done. After the Bergens invade Troll Village, Poppy, the happiest Troll ever born, and the curmudgeonly Branch set off on a journey to rescue her friends.