Jax-Ur is banished to the Phantom Zone for his crimes in the last issue. Following this, the Science Council, under the leadership of Fel-Kar, bans all space travel. The hope is that such a ban will prevent future "Jax-Urs" from using rockets so destructively.
While a somewhat reasonable response to the destruction of one of Krypton's moons, it immediately places Jor-El II on the wrong side of the law. His plan to evacuate the doomed planet by use of space ships is directly threatened. His research into building spacecraft becomes a criminal act. Nevertheless, last issue's exciting discovery of the Krull spacecraft makes Jor-El firmly believe that he'll at least be able to get his son and wife offworld before Krypton dies. He only has to get to it without being arrested.
Jor-El must outrace the ticking bomb that is Krypton—and the police detective that has been assigned to him by Fel-Kar—if he is to complete Kal-El's spacecraft in time. Lara, meanwhile, must protect her husband from an attack by the Phantom Zone criminals and his own idealism. Together, they just manage to get the ship launched before the planet explodes and Kal-El's destiny begins.