Sci-Fi martial arts action!After years of training and adventure, Goku has become Earth's ultimate warrior. And his son, Gohan, shows even greater promise. But the stakes are increasing as even deadlier enemies threaten the planet. DRAGON BALL Z is the ultimate science fiction-martial arts manga.The Lord of Lords, mightiest of the deities, has come to Earth--and he needs the help of Goku, Gohan and Vegeta! From across aeons of time, from across the stars, the evil wizard Bobbidi has returned, gathering chi energy to resurrect the imprisoned djinn Boo, the most powerful creature that ever existed. Beneath the ground in a buried spaceship, Bobbidi has assembled a menagerie of vicious beasts from across the galaxy, ready to defeat our heroes and feed their power to the djinn. But the most vicious enemy of all is already standing in the heroes' ranks...