Superman's grandfather, Seg-El, learns Krypton is in danger of being destroyed so that his future grandson will never be born.

After suffering a tragedy, Seg must adjust to a new life, a new rank and a new threat.

During a military crackdown on Seg's home district, Seg and Adam Strange race to find a deadly Sentry.

Seg is approached by a Black Zero leader as Rao finds a scapegoat for the failed Rankless Initiative.

Jayna grapples with her torn loyalties as Seg fights for survival within the heart of Black Zero.

Seg is faced with an impossible choice that will shape the El legacy and the fate of the universe.

After a failed coup, Daron punishes the conspirators. Lyta and Dev go in search of Jayna.

A resistance movement begins to form to impede the Voice of Rao's increasing power and influence.

Seg must decide if he can make the ultimate sacrifice in service of the greater good of Kandor.

Seg races to save his city from being overtaken as the bottling of Kandor begins.

Seg-El is stranded far from home, where his grandfather leads a rebellion against General Zod.

Adam Strange and Seg evade a bounty hunter, while General Zod uses Nyssa to further his cause.

The Rebels gain advantage against General Zod, as Seg goes head-to-head with Brianiac.

Seg and Adam return to a very different Kandor. Val and his Rebels prepare a major offensive.

Amidst a hostage negotiation that could end the war on Krypton, Seg seeks answers about Lyta.

In the wake of tragedy, Seg helps Nyssa rescue their son. Alliances on Wegthor fracture.

General Zod pushes for control of a dominating weapon. Seg and Nyssa fight to save Seg's life.

Dev and Jayna help Seg and Nyssa target General Zod's fleet, when they make a shocking discovery.

Zod brings Doomsday to heel and unleashes him on the Rebels, and Seg, Val, and Kem fight a last-ditch battle to hold the creature back while their compatriots escape.

The future of Krypton is at stake as Seg faces off against his enemy, General Zod, with the help of his allies.