Seg-El, General Zod and others in “Unfinished Business”

Seg-El

Where did he go?

Into the Phantom Zone, a dimension that exists outside the normal space-time continuum.

Lyta-Zod

How do you know that?

Because I was trapped in there with him.

Seg-El

You mean you were sentenced there for leading a coup.

Yes. Because the Council convinced me was as corrupt as the one that condemned Val-El.

Seg-El

That doesn't make sense. If Val went into the Phantom Zone 14 cycles ago, and you were thrown in there some point in the future, how did you two even meet?

Once inside the Phantom Zone, time and space have no meaning. Val told me that her father and the Voice of Rao believing that he was dead, it game him opportunity to seek out Brainiac, observe the way the creature operated in order to help Krypton prepare its defenses.

Seg-El

Then why didn't he come back?

Because he didn't have this. It was his only way out.

Nyssa-Vex

So you stole it? You betrayed him.

Only one of us could get out with this. So, yes, I betrayed him, but not his mission. Who better to stop Brainiac, hmm? A frail old man or a general? Such a mission required a Zod, not an El. Turned out I was both.