Dragon Ball Z Episode 32: Spirit Bomb Away!
Episode 32 of 291 of Dragon Ball Z, aired January 17, 1990, 25 minutes. Available with English subtitles and dub where released.
Episode summary
The battle continues between Goku and Vegeta, who is now a completely transformed Saiyan Warrior. When Gohan senses the danger his dad is facing, he convinces Krillin that they must return and fight. Goku is left with no choice except to use the Spirit Bomb. But when that fails, he is left in the clutches of Vegeta with no help in sight!