Battle for the Future

The human named Hero runs away from the ring and finds his son in the crowd. Roshi goes to talk to Goku. A thunderstorm rolls in. Piccolo swallows the bottle containing Kami, so that Goku can't open the bottle. Goku explains to Master Roshi, Tien, Krillin Chi-chi and Yamcha that Junior is King Piccolo, that Hero was actually Kami in a human body, and about Kami and Piccolo splitting into two separate entities, good and evil. Goku realizes that it is up to him to stop Piccolo now, as Kami said, he is the only one left. The sun comes out as their match begins. Their strength appears to be equal. Then Piccolo turns the tables with an explosion of energy attacks that leaves Goku in a crater in the stage, seemingly unconscious.