After Ariel, Moana, Tiana, Rapunzel and Snow White thwart Gaston's plan to take over their kingdoms, he calls upon Ursula, Jafar and the Evil Queen to help defeat the princesses; the princesses learn of Gaston's scheme and recruit allies.

During a heavy rainstorm, the Princess characters and their sidekick friends take in animals in need while enjoying a cozy day in their castle. But when the animals run amok, chaos erupts. Sleuthing reveals a mischievous villain behind it all, and with teamwork, quick thinking, and help from an unexpected friend, the Princess characters must restore order and save their home.