3x12 - Danny Phantom

Danny, after being publicly shamed by Vlad's new ghost hunting team, wants to be normal again. So he gets rid of his powers by reactivating the Fenton Portal after Jack dismantles it for a software upgrade. However, an asteroid made of Ectoranium threatens the Earth, and Vlad - after revealing to everyone that he is Plasmius - fails to stop it. The world now relies on a powerless Danny to get help from the ghosts in the Ghost Zone!