The world's greatest heroes have fallen, absorbed by the ever more powerful Boo, who has slaughtered everyone on the planet. Only Goku remains alive to fight...but even his strength will not be enough, unless he uses the Fusion Earrings to permanently merge with another warrior! Who will he choose...and when the dust has cleared, who or what will he become? On earth, among the stars, and in Boo's body, the last battle rages!