At the end of Danny Phantom, Danny defeats his archenemy Vlad Plasmius and saves the world from his evil plans. He also manages to free his parents from the Ghost Zone, and they are reunited as a family. Danny and his friends are able to return to their normal lives, but they are now aware of the world of ghosts and the responsibilities that come with it.
The series ends with Danny and his friends flying off into the sunset, ready to face whatever challenges come their way.