Dragon Ball GT is a short running anime series from the Dragon Ball saga. It's the only Dragon Ball Z sequel that isn't based on Toriyama's manga. As a result, it's technically all filler.
Dragon Ball GT follows Goku as he is transformed back into a child by his enemy Emperor Pilaf after an encounter with Black Star Dragon Balls. He spends the rest of the series with his grandchildren Pan and Trunks, attempting to retrieve them.
How Much Filler is in Dragon Ball GT?
Dragon Ball GT was a television series that aired from 1996 to 1997 and had a total of 65 episodes. Dragon Ball GT is entirely filler, with a total of 65 anime-only episodes over the course of the series' duration.