As a young boy, Xu-Xian is compelled to release his pet, a small snake. Unbeknownst to him, the snake is actually a young snake goddess named Bai-Niang, and she is in love with him. Many years later, when they are both adults, the princess is magically transformed into a human and sets out to find her love. However, the local wizard believes her to be a vampire and banishes Xu-Xian from the village to save him. Xu-Xian's pet pandas, Panda and Mimi, set out to save him and bring him back, in the process becoming leaders of an animal gang.