The heroes fight the Kryptonian army on several fronts, until Superboy gains the upper hand with a Phantom Zone projector. Supergirl, Steel, and the Guardian defeat General Lane's goons. Supergirl wants to kill Lane in revenge, decides against it, but Lane does it himself. Superman projects Zod and himself (as warden) into the Zone, but Nightwing and The Nightwing entity send Superman back. Nightwing de-ages and joins with Mon-El.; Superboy and friends defeat the general's team at Mount Rushmore, but Flamebird senses the problem with the sun turning red. She and Nightwing go to investigate, but The Nightwing entity tells Nightwing to stop, while Flamebird sacrifices herself to turn the sun normal again. Although many Kryptonians had perished in space while the sun was red, Superman and Supergirl recover, and go to Earth to fight Zod and company.