Blake Hudson is an environment officer who lives in a converted lighthouse on the southwest coast of England. Sky McPherson is a pathologist, recently assigned to the area. Both of them share a past.
Heathrow 101 has flown many routine journeys to and from Florida, so what made the 747 suddenly plunge into the Atlantic Ocean, killing all passengers on board?
Arthur Macelvoy has sailed many early morning fishing excursions on board The Sea Emperor without incident. So why did one of Cornwall's most successful fishing trawlers fail to return to shore?
Joyce Masterson has taken care of her invalid mother for years without ever complaining. So, what made her do those unspeakable things when the lights went out?
Through the course of their work, Blake and Sky set out to uncover the answers and this was their biggest mistake. For the truth is a conspiracy at the highest level and it will expose them to unimaginable terrors.
As the rain falls, and in a race against time, they will have to battle not only for their survival but for that of mankind against the greatest power on earth; nature.