Zachariah is a space traveller in a frozen state, riding on Halley's comet. When the comet crashes to Earth in Antarctica, he is rescued by an explorer and taken to Melbourne, Australia. In Melbourne Zachariah meets and befriends Mary and Rachel. The women work out that Zachariah is human, but not of this earth. Hailing him as some kind of supreme extraterrestrial being, they form a cult, with Zachariah as the reluctant leader. Meanwhile Bart, a soldier from Earth, pursues Zachariah through a wormhole. Finding him and his coalition, he also finds a billion people who are in a frozen state and...