After Po is tapped to become the Spiritual Leader of the Valley of Peace, he needs to find and train a new Dragon Warrior, while a wicked sorceress plans to re-summon all the master villains whom Po has vanquished to the spirit realm.

Follow Po, who partners up with a no-nonsense English knight named Wandering Blade, to find a collection of four powerful weapons before a mysterious pair of weasels do, and save the world from destruction.