Dragon Ball Z Episode 21: Counting Down
Episode 21 of 291 of Dragon Ball Z, aired September 27, 1989, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Goku's training with King Kai complete, Master Roshi and the gang summon the Eternal Dragon to wish him back to life! And they're not a moment too soon. There's only one day left before the Saiyans arrive! The problem is - it's going to take Goku two days to return on Snake Way!