In this magical tale, Lev, Dawn, Violet, and Gray, are tasked with a dangerous quest up Pangolin Mountain. When the Chosen Lirtles fail to unblock Rainbow River and Gray's brother, Samuel, is captured by the Snakadactyles, this unlikely gang of young heroes have three nights to go up the mountain, face their mortal enemies, and realize their destinies to save the Land of the Lirtles ... all before time runs out.