The next instalment of your fave musical half-pints branches (LOL) far beyond their home turf. There are six different Troll kingdoms, all with their own brand of music: Funk, Country, Techno, Classical, Pop and Rock. Queen Barb of the Hard-Rock Trolls is hell bent on destroying all who do not rock, making her tribe's music one to rule them all. Can Poppy, Branch, and their friends bring all the Trolls together to fight for their freedom? There is only one way to find out!