Dragon Ball Z Episode 93: Keep the Chance Alive
Episode 93 of 291 of Dragon Ball Z, aired May 29, 1991, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Goku's 20x Kaio-Ken attack with a Kamehameha doesn't work against Frieza, as the tyrant tries to destroy him once and for all. Suddenly, Vegeta telepathically speaks to Goku from the otherworld to not give up yet, giving Goku more power, but it's not enough. Luckily, Goku has one more trick up his sleeve: the Spirit Bomb.