WARNING: If you don't want to know what happened in this episode, don't read this photo recap!
Remember back when Adam was talking to Seg in the alleys of Kandor, and he just disappeared inexplicably? Well, he was brought back to this ship — Sardath's ship. He's the guy he stole the Zeta device from to travel through spacetime. Sardath wants it back, but Adam needs it to save Superman. So... he wins.