Dragon Ball Z: The World's Strongest

Dragon Ball Z: The World's Strongest is the second Dragon Ball Z movie produced. It was originally released in Japan on March 10, 1990, between episodes 39 and 40. It was translated in North America by FUNimation Entertainment. It was released on VHS and DVD in North America on May 26, 1998, with an English voice dub, produced by Pioneer Home Entertainment in association with Funimation Entertainment. Pioneer's dub used the original Ocean Productions voice cast of the TV series. The film was later re-dubbed by Funimation's in-house voice cast and released again to DVD on November 14, 2006

The movie premiered on Cartoon Network's Toonami block on February 5, 1999. The movie also aired on Toonami on four other occasions:
 * May 29, 1999 as part of DBZ20XL
 * February 21, 2000 as part of the DBZ President's Day Movie Marathon
 * April 13, 2001
 * November 24, 2000

Synopsis
The movie begins with Gohan and Oolong searching for the Dragon Balls that have all been gathered in the frozen Tsumisumbri Mountains (with the latter obviously wanting to wish for underwear). Before they reach them, Shenron is summoned by Dr. Kochin, who wishes for his mentor, Dr. Wheelo, to be released from his icy prison. Meanwhile, Piccolo is ambushed by three mysterious warriors and knocked out cold while trying to defend Gohan and Oolong. Later on, Gohan has a weird dream about him and Piccolo.

Kochin then kidnaps Master Roshi and Bulma, thinking that Roshi is the world's strongest and a suitable body for Wheelo, whose own body was destroyed, leaving him only as a brain. Roshi is tested by Kochin's Bio-Warriors, and, despite putting up a decent fight while being outnumbered three to one, is ultimately defeated. Bulma then reveals that Goku is the strongest, just as he approaches Wheelo's fortress to save his friends. Meanwhile, Goku and Chi-Chi confront Oolong and Gohan on what they know about the group who kidnapped Bulma and Master Roshi.

After reaching the fortress, Goku is attacked by the Bio-Warriors, but easily defeats them with the Kaio-ken, and is also joined by Gohan and Krillin. They then arrive at Wheelo's lab where Bulma is being held, but run into Piccolo, who was brainwashed into returning to his old ways when he was captured earlier. Goku and Piccolo then fight each other, but Gohan's anger causes the mind-controlling device on Piccolo to break. Kochin tries to shoot Krillin and Bulma with his machine gun-arm, but is beaten by Roshi.

Wheelo then breaks out of the wall, revealing his brain to be inside a huge robot and killing Dr. Kochin accidentally. Realizing that he was being controlled, Piccolo attacks Dr. Wheelo, only to be brushed aside. As Wheelo jumps into the air, Goku, Krillin, and Roshi fire the Master-Student Kamehameha, which does nothing to Wheelo. Goku, Gohan, Krillin, Piccolo, and Roshi then attack Wheelo, but are unable to win. Goku then fires his Kaio-ken Kamehameha and shoots Wheelo into space. Wheelo decides to destroy the Earth with his Planet Geyser energy wave and move on to another world, but Piccolo and Gohan are able to stop him for a while. Meanwhile, Goku has been collecting energy for a Spirit Bomb; when it is ready, Goku launches it at Wheelo and destroys the mad scientist.

Characters
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