In the 25th Century the British Space Empire faces the gathering menace of the evil ant-soldiers of the Ghast Empire hive, hell-bent on galactic domination and the extermination of all humanoid life. Isambard Smith is the square-jawed, courageous, and somewhat asinine new commander of the battle damaged light freighter John Pym, destined to take on the alien threat because nobody else is available. Together with his bold crew—a skull-collecting alien lunatic, an android pilot who is actually a fugitive sex toy, and a hamster called Gerald—he must collect new-age herbalist Rhianna Mitchell from the laid back New Francisco orbiter and bring her back to safety in the Empire. Straightforward enough—except the Ghasts want her too. If he is to get back to Blighty alive, Smith must defeat void sharks, a universe-weary android assassin, and John Gilead, psychopathic naval officer from the fanatically religious Republic of New Eden before facing his greatest enemy: a ruthless alien warlord with a very large behind.