The seven-star dragon begins destroying the city. Inside of him, Pan can't take the destruction, so she telepathically pleads with Goku to fight. He realizes that it's the right thing to do, so he reluctantly transforms into a Super Saiyan 4. Intending to kill the dragon, along with Pan, he hits the dragon with a Kamehameha wave. The dust clears, and the dragon is still alive. Goku couldn't bring himself to put all of his energy into the blast. The dragon turns the tide of the fight, and appears to knock Goku out. He mockingly "grants Goku's wish" by letting him see Pan one last time. He pushes Pan halfway out of him, and Goku grabs her and pulls her out. The dragon regresses to his normal form, and Goku destroys him. They claim the seven-star ball, and continue their journey.
All Dragonball Episode List
