Dragon Ball Z Gaiden: Saiya-jin Zetsumetsu Keikaku

Dr. Raichi and the Dark Planet arrive in Earth's Solar System, and the souls of those that hate the Saiyans state that they want one more chance to kill them. Raichi announces that it is time to destroy Earth and eradicate the remaining Saiyans. Soon Mr. Popo arrives at the Son household to speak with Goku and Gohan, he tells them that Dende sent him to tell them that mysterious machines have appeared all over the planet, and they are releasing gas which kills everything around it - plants, animals, and people. Goku and Gohan head off to stop the threat, first stopping at Capsule Corp to talk with Bulma and her father, but Bulma reveals that she is unable to do anything to stop the…