DBZ Episode: Goku VS Android

3 years later, everybody joind together again. Then, Yajirobe and Yamcha is attacked clandestinely
by Android 19 and 20. That's why Goku start a war with Android 19 and 20. When he fights with Android 19,heart attack occurs so that he can't continue fighting. Vegeta who has been practising martial arts and can reach Super Saiyan, fights with Android 19 and win.

Android 20 or Dr. Gero gets away to his lab and calls Android 17 and 18. When they alive they try to call Android 16 to be alive too, but Dr.Gero tries to stop them because Android 16 is not complete one. So, Dr.Gero is killed by Androi 17 and 18 and they call Android 16 to be alive. Krillin and friends see them, so there's a fight between the two groups. Trunks wonders why the time is running wrongly. Instead fighting with Android 17 and 18, Goku has fought with Andriod 19 and 20. Piccolo goes to God's castle to make fusion with God. This can result in unuseable of Dragon Balls. At the same time, many people are killed by Cell who is a living thing that Dr. Gero makes and the one who make time running wrongly is Cell.