Dragon Ball Z Episode 56: Zarbon`s Mission
Episode 56 of 291 of Dragon Ball Z, aired August 1, 1990, 25 minutes. Available with English subtitles and dub where released.
Episode summary
On Namek, Vegeta finally recovers from his battle with Zarbon, and escapse from Frieza's base with all five Dragon Balls. He discovers that Krillin has the seventh Dragon Ball and goes after it, with Zarbon in hot pursuit. Meanwhile, Goku's spaceship begins passing through a violent magnetic storm.