Annabelle is a MI6 operative, the lights have gone out in London, from a cyber-attack. The laptop that caused it finds its way to the US. Annabelle joins up with Jack Carling of the CIA, to locate it before too much damage is done. They succeed but Annabelle becomes disillusioned with all the killing and she and Jack sign up for a trip to Saturn with NASA. Disastrous things happen to the Earth while they are away.