Ursa and Non, 25 other Kryptonian criminals also escape the Zone and defeat a number of Earth's heroes, beginning their quest to conquer the planet. Zod ambushes Superman in revenge for Jor-El's actions and traps him in the Phantom Zone, which he later escapes with the help of the heroic Phantom Zone prisoner Mon-El. With assistance from his traditional enemies Lex Luthor, Metallo, Parasite and Bizarro, Superman takes on Zod's army. Out of nearly thirty Kryptonians, Superman's temporary allies successfully kill several, driving the rest back into the Phantom Zone alongside Zod and Ursa, who take Chris Kent with them. In the later "New Krypton" arc storyline however, Zod is freed from the Phantom Zone once again by Supergirl's mother Alura. The "bottled city of Kandor" is transformed into a populated Kryptonian planet ("New Krypton"), and Zod is appointed the leader of its army. In the "World of New Krypton" Action Comics storyline, when Superman decides to see what life is like on New Krypton, he is drafted into the Military Guild under General Zod. Zod and Superman maintain a mistrustful professional relationship. Despite their past, neither seems prepared to behave with marked aggression toward the other. Later, during a Kryptonian ceremony, Zod is shot by the Kryptonian Ral-Dar (who is working with Lois's father General Sam Lane), leading Zod to appoint Superman as temporary General until his recovery. The two are involved in a Kryptonian political plot, but ultimately apprehend the planet's traitor and see a reform of New Krypton's Council. Peace is short-lived, however, due to an attack by the alien Brainiac, who had been responsible for the bottling of Kandor in the first place. In "Last Stand of New Krypton", New Krypton comes under attack by Brainiac, and Zod engineers a plan to defeat him; Zod is driven by an urge to avenge his prior defeat at the hands of the Coluan Brainiac, when Kandor was bottled from Old Krypton. The storyline ends with the planet's destruction, leading Zod to declare war on Earth, sparking the "War of the Supermen" storyline. After a fierce conflict between Superman and Zod in defence of Earth, Zod is pushed back into the Phantom Zone by his son, Chris Kent, who had freed himself from the Phantom Zone and became active as an adult superhero on planet Earth. The New 52: 2011–2016 In 2011, DC chose to revamp its continuity, rebooting