Dragon Ball GT - Season 1 - Eps 16: Giru's Checkered Past
Giru convinces the Z warriors to land on Planet M2, his home planet. It is a trap though and Giru is greeted by General Rildo and is told he has done a good job of luring the humans to the planet. At the end of the episode the Z warriors meet up with a group of strong robots who call themselves M2's commandos. After a short fight the robots capture Trunks and Goku and take them away.
About Dragon Ball GT

Title: Dragon Ball GT
First Air Date: 1996-02-07
Last Air Date: 1997-11-19
Status: Ended
Rating: 7.7/10 (from 1951 votes)
Language: JA
Seasons: 2
Total Episodes: 64
Network: Fuji TV
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy
Production Companies: Bird Studios, Toei Animation, Toei Company, Fizz Sound Creation
Synopsis
Ten years have passed since Goku left his friends and family to hone his skills. But Goku soon finds himself helpless against the mystical power of the Dragon Balls and an accidental wish made by the devious Emperor Pilaf. The wish; that Goku once again become a child! Goku, together with Trunks, and his own granddaughter Pan, blast off into the outer reaches of space in search of the mysterious Black Star Dragon Balls. But these Dragon Balls have a fatal secret: if not collected within one year Earth will be destroyed.
Cast

Masako Nozawa
Son Gohan / Son Goku / Son Goten (voice)

Yuko Minaguchi
Pan / Videl (voice)

Takeshi Kusao
Trunks (voice)

Bin Shimada
Son Para / Sūgorō (voice)

Atsushi Kisaichi
Oob (voice)

Ryo Horikawa
Vegeta (voice)

Toshio Furukawa
Piccolo (voice)

Miki Ito
Android 18 (voice)

Hiromi Tsuru
Bulma / Bra (voice)

Daisuke Gori
Blake Smoke Dragon / Enma-Daiō / Gyūmaō / Mr. Satan / Umigame (voice)