With the Red Ronin destroyed, Godzilla is the only force capable of stopping the now super-powered Mega-Monsters. The Godzilla Squad provides Godzilla with support while Jimmy Woo recovers the unconscious Robert from the head of the Red Ronin robot. While aboard their base on the moon, the dying Betans watch the battle rage on. In order to maintain their life support as long as possible, they lower their base into the moon's surface. All the Betans die except one.
As the battle continues, Godzilla is able to destroy Rhiahn with his flame breath, save Dum Dum from Krollar, burn Triax from the inside out with his flame breath, and then use Krollar's own bio-blade to behead it. With the Mega-Monsters destroyed, the lone Betan rejoices over Godzilla's victory while the Megans decide to cease their war against the Betans. On Earth, the Godzilla Squad decides to let Godzilla go, vowing to capture him some other time.