Some 10 million years in the future, 1000 humans and their cloned offspring have been granted a power so that may preserve a peace that has endured for eons: to build worlds wherever they wish and terraform any wasteland. But a woman as old as the peace itself brings warning of an ancient crime.

Two years after the unhatching of Callayan President Neiland's plot to make the capital city of Tanusha the center of the Federation, Callay is under siege. A powerful faction of conservative Fleet captains has surrounded Callay, at Earth's behest, and is threatening a blockade - or worse.

Thirty years have passed for Tom Strong, his alternate-world counterpart Tom Strange, and the science-heroes of Terra Obscura - do they still have what it takes? And will they be able to stop a mysterious object... hurtling on a collision course with their planet?

Superman comes to the aid of the Martian Manhunter, who is being stalked by the notorious bounty hunter Lobo. But while the Man of Steel races to save his team mate from peril, an threat is rising: a trap has been set by an insidious machine intelligence obsessed with hunting down the sole survivors of the planets Krypton, Mars, and Czarnia.

Cassandra Kresnov is a highly advanced hunter-killer android. She has escaped the League and fled to Callay, a member of the Federation. This is a story with a cracking plot and strong characters. At its heart is the enigma of Cassandra: Is she more human than human, or is she totally untrustworthy?