Following this, Brainiac, now in possession of his ship again, unleashes his robot army against the newly created planet of New Krypton, and the Kryptonian citizens rise up to fight the drones. General Zod's army proves totally unable to fend them off, as the Brainiac's ship's force fields are seemingly invulnerable and his drones are equipped with red sunray guns, allowing them to kill tens of thousands of Kryptonians. Superman, being the only one who knows how to penetrate his force fields (having learned the trick in the previous story arc), manages to enter Brainiac's ship. Supergirl leads the Kryptonians against the drones, but is attacked by an anti-Kryptonian Brainiac probe. Superboy, Mon-El, and the Legion of Super-Heroes join the fight and save Supergirl.