Po is gearing up to become the spiritual leader of his Valley of Peace, but also needs someone to take his place as Dragon Warrior. As such, he will train a new kung fu practitioner for the spot and will encounter a villain called the Chameleon who conjures villains from the past.
In a world where human beings and puppets live together, when the members of the cast of a children's television show aired during the 1990s begin to get murdered one by one, puppet Phil Philips, a former LAPD detective who fell in disgrace and turned into a private eye, takes on the case at the request of his old boss in order to assist detective Edwards, who was his partner in the past.