In the Spirit Realm, Master Oogway is meditating peacefully when he is attacked by a Spirit Warrior: a Yak named Kai who fought against Oogway five hundred years previously. The two battle, and Oogway learns that Kai has increased his strength by stealing the Chi of every Kung fu master in the Spirit Realm, and only needs Oogway's to become strong enough to return to the mortal realm. Claiming victory, Kai is nevertheless warned that Oogway was never intended to defeat him, but that he has set someone else on that path. Meanwhile, in the Valley of Peace, Po and the Furious Five learn that Shifu will no longer be responsible for overseeing their training: that responsibility now falls to Po.