In a world where the world of Trolls became divided much later in time, the Pop Tribe was basically disintegrated by the Rock tribe. But then the King and Queen of Rock took pity on an infant, orphaned Pop Troll and raised her as their own with their own daughter. Poppy and Barb were like sisters, with Poppy blissfully unaware of her Pop origins, living the hardcore, rock n' roll life. However, after meeting a group of Pop Troll rebels, Poppy starts questioning about why she feels immediately connected with them, and why she likes their music so much. When she learns the truth about her origins, she is devastated and runs away from Volcano City. The group of rebels she had met before welcomed her to their base in Lonesome Flats, where they had made allies with the Country Trolls. There, Poppy learns that she is the lost princess of Pop. As the years go by, Poppy managed to lead the rebels to plead their cases to the other Troll tribes, gaining more allies to fight for the Pop Trolls' freedom, along with finding a place where the Pop Tribe can live happily. Also, she had found true love with the leader of the rebellion, Branch, and started a family with him. However, there is one more thing that the Pop Trolls need to finally have their freedom: their String. But an embittered Barb is not willing to let it go so easily, and Poppy hopes that her sister will listen to reason before things escalate and turn into a war zone.