Out in deep space, Superman pilots his ship to a black hole. His mission: to send in a probe to study the black hole for S.T.A.R. Labs. However, he discovers a ship that is on a course for the black hole. He flies out to save the ship and its crew. Superman's efforts prove successful and he follows the ships vapor trail to its home planet.
Back on the crew's home world, Superman releases them but the people are afraid referring to Superman as "one of them". Superman talks to one of the crewmembers and is advised to run as well. Superman is soon attacked by a couple more ships, which he easily destroys. However, more battle vehicles and soldiers arrive. They are soon told to stand down by Mala.
Mala takes Superman to her palace where she and Jax-Ur rule. Mala explains their escape from the phantom zone: two meteors of lunar proportions heading towards the black hole and on a collision course with each other. The released energy tore a rift into a Phantom Zone. They escaped from this rift but suffocated in the vacuum. Luckily, they were rescued by a science vessel sent to study the phenomenon.
After their rescue, Jax-Ur and Mala took control of the planet, which they saw as primitive and torn by petty conflict, "not unlike Earth". The pair insists that they have brought order and peace to the planet and made it better than it had ever been. They have been shaping the planet into Jax-Ur's vision of paradise on Krypton and the planet is now ruled by order. The people that Superman saved were criminals meant to be executed. They then warn Superman that they have developed their powers for a year and he should not interfere.
Jax-Ur takes Superman to his ship and assures him that there isn't anything wrong with it. The crewmember that Superman spoke to earlier sneaks in and tells Superman that the "criminals" that he rescued were actually leaders from before Jax-Ur and Mala's reign. She begs for Superman's help but he refuses on the basis that a fight between the three Kryptonians would be devastating to the planet.
The crewmember, Cetea, shows Superman a factory where an armada of ships, piloted by drones is being built. Superman checks the destination for the ships and discovers that it's Earth, to which he isn't surprised at. Unfortunately, an alarm goes off and a group of soldiers arrives. Superman and Mala fight but Jax-Ur manages to capture him in a set of energy rings.
Superman and Cetea are taken to the black hole where they will be thrown in and executed. Jax-Ur muses over his admiration of the black hole and gets set to send out his prisoners. The ship suddenly starts to shake and a soldier, Alterus, arrives and explains that the ship hit a gravity anomaly and the navigation system has been damaged. Jax-Ur and Mala go to investigate but find that it was a lie. However, the distraction was enough to allow Alterus and Cetea to escape in a pod. Superman confronts Jax-Ur and Mala and destroys the ship's controls so that it gets caught in the gravity of the black hole and is pulled closer. The ship tears releasing all the air but Jax-Ur gives Mala a breathing Mask. Superman, who doesn't have one, is at a disadvantage and the pair decides to leave him.
However, Superman finds an escape pod, which Jax-Ur and Mala try to take from him. Unfortunately, the ship hits the pod sending Jax-Ur and Mala careening towards the black hole. Superman enters the pod and watches as the two evil Kryptonians are sucked into the black hole. He then flies off in the escape pod and returns to the alien planet.
Upon leaving the planet, Superman realizes that it was a mistake to refuse to help the aliens and vows never to turn his back on others again.