Sera is a young soldier, bred her entire life to fight for Krypton. She would die for this planet, but she's never had the time or inclination to enjoy it. Zahn, however, is a young scientist, full of hope and ideas for how to improve Krypton for all its citizens. And yet, the cracks in his world are beginning to appear. In fact, both Sera and Zahn are unique in ways that will soon drive them from their destinies and toward each other--toward a cataclysmic ending to all that they once held true.

Having learned of Krypton's possible fate, Sera and Zahn find it increasingly difficult to continue with their everyday lives. Sera's enhanced fighting skills may impress General Zod, but they seem to raise suspicions among her fellow soldiers. Zahn finds it equally challenging to maintain his studies and his friendships, as he carries both the knowledge of an underground rebel group's plans and the experiments conducted by Jor-El and Lara. Jor-El himself attempts to alert the tribunes about the looming danger to the planet.