Last Sons

The last survivors of three destroyed worlds, Superman of Krypton, the Martian Manhunter of Mars, and the bounty hunter Lobo of Czarnia, become prey for an implacable machine intelligence obsessed with hunting the sole remnants of dead planets. Old enemies by reputation, Superman and J'onn J'onzz have to make an uneasy truce with Lobo himself if any of them are going to survive.