The Resurrection of Cell and Frieza
Cell and Frieza are back! After getting trapped in HFIL, Goku must confront and defeat the villains if he is to return to Earth. But things get sticky when he falls into the deepest, darkest realm of HFIL, where he must endure tests that would drive an ordinary person to madness!
Aired 23/04/1997EP 43 - The Resurrection of Cell and Frieza
Dragon Ball GT
Emperor Pilaf finally has his hands on the Black Star Dragon Balls after years of searching, which are said to be twice as powerful as Earth's normal ones. Pilaf is about to make his wish for world domination when he is interrupted by Gokuu Son. As a result, Pilaf flubs his wish and accidentally turns Gokuu back into a child.
After the wish is granted, the Black Star Dragon Balls scatter across the galaxy. However, Gokuu discovers that they will cause the Earth to explode unless they are all brought back within a year. Uniting with his granddaughter Pan and a young adult Trunks, Gokuu sets off on an adventure through the universe to find the Black Star Dragon Balls and save his planet from destruction.
(Source: MAL Rewrite)