Demon in Di-Skies (Tale of the Demon Tail)

The Sky demon must retrieve it's tail from Uncle's shop without having Uncle and Jackie sending him back through the portal. Jade befriends Seymour, not knowing that he was really the Sky demon in disguise.  Uncle thought there was something strange with this young boy.  Soon enough, Uncle, Tohru, Uncle and Jackie found out that Seymour was the Sky Demon when it retrieves it's tail and flies off.  Hsi Wu kidnaps Uncle to remove the chi spell that Uncle had placed on his tail.  Now the team must take the tail and place it back on the demon before the demon destroys it.