Tiana, Moana, Snow White, Rapunzel, and Ariel are off on an adventure as they are each unexpectedly transported to a mysterious castle. Shortly after arriving, they soon discover that Gaston has hatched an evil plan to take over all their kingdoms! The Princess characters must work together to solve challenges hidden deep within the castle walls and try to save their kingdoms from Gaston. Will bravery, quick-thinking, and teamwork prevail?

After Ariel, Moana, Tiana, Rapunzel, and Snow White thwarted Gaston's plan to take over all of their kingdoms, he calls upon Ursula, Jafar, and the Evil Queen to help take the Princesses down once and for all. The Princesses learn about Gaston's scheme and recruit a few friends of their own with the help of Magic Mirror: Aurora, Belle, and Cinderella! Together, the Princesses team up for an ultimate showdown of good versus evil.