The Secret of Dr. Gero

As Yamcha races Goku home for the heart virus antidote, Super Saiyan Vegeta takes on Android 19. Vegeta easily gains the upper hand, even Android 19's energy absorption device does not appear to slow him down. After Vegeta blows Android 19 to pieces, Android 20 runs off toward the mountains. While Vegeta and the remaining Z Fighters search for him, Android 20 realizes he will need more energy to defeat Vegeta and he'll steal the Z Fighters' to do it.