When the Valley of Peace is threatened, lazy Po the panda discovers his destiny as the "chosen one" and trains to become a kung fu hero, but transforming the unsleek slacker into a brave warrior won't be easy. It's up to Master Shifu and the Furious Five -- Tigress, Crane, Mantis, Viper and Monkey -- to give it a try.

Ordered to teach a martial arts class of rambunctious bunny kittens, Po tells stories of each of the Furious Five's pasts.

Po is now living his dream as The Dragon Warrior, protecting the Valley of Peace alongside his friends and fellow kung fu masters, The Furious Five - Tigress, Crane, Mantis, Viper and Monkey. But Po’s new life of awesomeness is threatened by the emergence of a formidable villain, who plans to use a secret, unstoppable weapon to conquer China and destroy kung fu. It is up to Po and The Furious Five to journey across China to face this threat and vanquish it. But how can Po stop a weapon that can stop kung fu? He must look to his past and uncover the secrets of his mysterious origins; only then will he be able to unlock the strength he needs to succeed.

Continuing his "legendary adventures of awesomeness", Po must face two hugely epic, but different threats: one supernatural and the other a little closer to his home.

Po is set to become the new spiritual leader of the Valley of Peace, but before he can do that, he must find a successor to become the new Dragon Warrior. He appears to find one in Zhen, a fox with plenty of promising abilities but who doesn’t quite like the idea of Po training her.