One year after Goku disappears after becoming a Super Saiyan, Team Z is visited by Trunks, a time traveler and future son of Bulma and Vegeta, who warns them of an attack by Dr. Gero, a megalomaniac scientist who intends to defeat Goku with an army of androids, as revenge for his destruction of his army in the past. However, as if the threat of an army of androids wasn't enough, the team must deal with an even more dangerous android.
