When a comet struck Earth, Matthew Drax found himself sent 500 years into the future - only to find civilization in ruins. In a world filled with barbarians, hostile mutants, and lost technology, Drax and co. cross the globe in search of adventure. Having recently saved the world by restoring the moon from its falling orbit, an accident in proceedings causes pockets of parallel worlds to dot the globe. What new dangers await Matt and his travelling companion, the telepathic warrior queen Aruula, as they cross these strange gaps in time and space?