The Greatest Surprise
While Goku is preparing for the end, help comes from an unlikely source. It is Android 18, and she is mad! Determined to avenge the death of her beloved, No. 18 unleashes her full fury upon her android brother. As everyone watches in disbelief, they are unaware that the most dangerous power of all time is about to be awakened!
Aired 04/06/1997EP 47 - The Greatest Surprise
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)