Dragonball kai episode 61

Description : No Chance of Victory Against #19! Super Vegeta Arrives Late Before Android #19 can finish draining Goku's energy, Vegeta finally arrives, saving Goku by kicking the android in the face. Yamcha then escorts Goku away from the battlefield. Vegeta then squares up to the androids, and much to everyone's surprise, transforms into a Super Saiyan. It is revealed that whereas Goku's transformation was triggered by the desire to protect his friends and family, Vegeta's was triggered purely by the desire to become stronger, as well as his anger at being surpassed by Goku. The battle then begins, and it's clear that Vegeta has the edge over Android #19. Even the android's energy absorption attack proves futile, as Vegeta tears off the android's arms, making the technique impossible to use. As the android runs in fear, Vegeta launches his "Big Bang Attack" and finishes the battle, leaving nothing but the android's head intact. Android #20 then escapes into the nearby cliffs, planning to use the terrain to launch a surprise attack on the fighters.