Dr. Lychee may be the last of the Tuffle people, a race that was completely wiped some time ago by the Saiyans. He now plans to take revenge on the remaining Saiyans, Goku, Vegeta, Trunks, and Gohan. He creates a machine that will emit Destron, a gas that could destroy all life on Earth. The Saiyans, plus Piccolo, only have 72 hours to destroy these machines and find Dr. Lychee. When trying to destroy the final machine, Vegeta discovers that it is protected by an impenetrable energy barrier. Frieza, Cooler, Turles and Lord Slug appear and engage the heroes one on one. The heroes continue to lose against their foes. It is revealed that these ghost warriors are made of Destron gas and cannot be beaten unless the gas is neutralized. The barrier is destroyed by Bulma, who also came with the antidote for the Destron gas. She then manages to stop the gas. The heroes kill Frieza and the others. The heroes track down Dr. Lychee on the Dark Planet and engage him, discovering that his ghost ... Written by Wikipedia

Kenshin Himura goes up against mysterious weapons dealer Enishi. He controls the underworld of China. The secret of Kenshin Himura’s "Jujishou" is also revealed.