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. 
As Freeza changes into new forms, each more powerful than the last, the desperate heroes--Gohan, Kuririn, Piccolo and the self-serving Vegeta--find themselves struggling merely to stay alive. Desperate for a trump card, Vegeta asks Kuririn to mortally wound him, so that his auto-evolving mechanism will turn him into the legendary strongest fighter in the universe--the Super Saiyan! On the other side of the planet, Goku awakens from within his healing capsule and streaks to the battlefield to turn the tide. But even in his final, supposedly deadliest form, Freeza has an ace up his sleeve...