Danny Phantom was a cartoon that aired on Nickelodeon betweem 2004 and 2007. This mid-season 3 episode was aired out of order as the season 3 opener following a prominent ad campaign, and as such featured unintroduced characters, season arc spoilers, and dumped the viewer into the middle of a season remarkable primarily for character assassination, bad monster-of-the-week episodes, abandoned character arcs, and executive meddling which reduced the entire show to a husk of its former self.
What we're trying to say is that GA really liked this show and this episode was the beginning of the end. How bad was it you may ask? Well, it has Luke Skywalker voicing a giant plant themed ghost. That give you a good idea?