London is struck by an invasion. Women, children, old and young, none are safe from the deadly menace. The attacks are swift and sure, escape is impossible. A state of emergency is declared. Evacuation seems to be the only solution in the face of the growing panic and mounting death toll. For millions of years man and rats had been natural enemies. But this time, the enemy is a species of super rat – the mutant results of an atomic blast – and suddenly, shockingly, horribly… the balance of power had shifted and war is declared – the rats are public enemy number one…