The Hunt for Doctor Gero! Discover the Hidden Laboratory!.As the dust settles, Android #20 is nowhere to be seen, and it is assumed that he plans to return to the laboratory to awaken Androids #17 and #18 - the androids causing havoc in Trunk's timeline. Meanwhile, Trunks rescues his mother and young self, and berates Vegeta for failing to protect his family. Bulma then reveals that #20 may actually be the androids' creator, Dr. Gero, who has seemingly converted himself into one as well. The group then plan to find the lab and destroy the androids before Gero can activate them. Vegeta also sets off to find the lab, but with the intentions of fighting the androids as a demonstration of his power. Trunks leaves to stop his father, while Piccolo finally unveils the truth of Trunks' origin to the rest of the group. He knew this because he overheard the conversation between Trunks and Goku. Meanwhile, Piccolo, Krillin and Tien split up and search the mountains where Gero's lab is rumoured to be located, while Gohan takes Bulma, baby Trunks, and Yajirobe home. Meanwhile, Krillin is attacked by the doctor, but is spared when Gero senses Piccolo nearby and escapes.