Jackie Chan Adventures (2000) : 3x17

The J-Team attends the re-dedication of the San Francisco Museum's collection of Jade (the stone, not the niece) and when the collection disappears again, Viper is accused of the theft. El Toro is later caught in the act of stealing more jade. Jackie chases the masked man and Jade discovers that the theif is A CLONE! Capt. Black interviews Chang (who is in prison) and they discover that Chang is also a clone. The real Chang, and his alchemist Yip, watche from a hidden lair, sending the Jackie clone into Section 13. Jackie-Clone is not able to subdue and replace the real Jackie and flees before being captured. Uncle creates a magic power that will determine who is a clone and who is not - and they discover that Paco is a clone! Impersonating their clones, the J-Team infiltrates Chang's hideouts to rescue Paco. Detected, the J-Team is attacked by the J-Team-clones but Uncle finds a way to over-ride the magic clones and turn them on Chang and Yip.