DBZ Episode 133
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
Nightmare Comes True is the eighth episode of the Androids Saga and the one hundred thirty-third overall episode in the uncut version Dragon Ball Z series. The original Japanese title is "Soshite Kyofu ga Genjitsu ni... Mezameru Ju-Nanago to Ju-Hachigo!!" (そして恐怖が現実に... 目覚める17号と18号!!). The episode first aired on April 1, 1992. It's original American air date was September 25, 2000.
As they search the mountains for Dr. Gero's laboratory, Future Trunks tries to warn a stubborn Vegeta that the Androids are more powerful than he realizes. Meanwhile, the remaining Z Fighters arrive at North City and decide to split up in their search. Krillin is attacked by Dr. Gero, but manages to follow him to his laboratory and signals the others. While the Z Fighters try to break in, Dr. Gero activates Android 17 and Android 18, who are not inclined to be under his control.
- The Farmer (or his twin) appears in this episode as well.