Androids 19 and 20 nearly kill Yamcha. Fortunately, the other Z Fighters arrive on the scene to confront them. Krillin takes Yamcha away to get him a Senzu Bean. Meanwhile, revelations await Goku, Tien and Piccolo. It turns out that this is all about Dr. Gero wanting to make Goku pay for destroying the Red Ribbon Army years ago. Dr. Gero had certainly been meticulous – spending years watching, calculating, and collecting various DNA samples to achieve victory. With more innocents in danger, the three Z Fighters convince the two Androids to take the fight to a more isolated area. Once there, the Super Saiyan Goku takes on Android 19.