Dragon Ball Z Episode 102: Duel on a Vanishing Planet
Episode 102 of 291 of Dragon Ball Z, aired August 7, 1991, 25 minutes. Available with English subtitles and dub where released.
Episode summary
It seems that everyone on Namek has been transported to Earth, but Goku is still on Namek, insisting that he finish the fight. Everyone is upset with Goku's decision, as it seems that there is no escape from the explosion. Can Goku finish Frieza in one minute and escape in time?