Attacked on Both Sides by an Internal Enemy?! Son Goku vs Artificial Human #19

Plot:

As Goku, Piccolo and Tien take the androids to a new location to battle, Krillin revives Yamcha with a sensu bean. However, once Yamcha reveals the androids' ability to absorb energy, the three of them (Yamcha, Krillin and Gohan) head off to warn the others. Meanwhile, it is revealed to Goku that the androids are a result of years of research conducted by Dr. Gero, in which miniature spy robots were used to analyse Goku's fighting techniques and developments in strength, all in an attempt to exact revenge on Goku for destroying the Red Ribbon Army. As a battles ensues between Super Saiyan Goku and Android #19, it becomes evident that Goku is losing the upper hand, especially once the android absorbs Goku's Kamehameha wave. Gohan then reveals that Goku never became sick from the heart virus (as was predicted by Trunks), and that it seems to have affected him six months later than planned. As Goku struggles to fight, the android prepares to finish the battle by absorbing Goku's remaining energy.