Terrorists are threatening to sabotage Britain’s nuclear power plants. One nuclear explosive smuggled inside a reactor would turn the entire core into a massive atom bomb… and bring death and disease to millions of people for centuries to come.

Sir Isaac Quoit, chairman of the Atomic Energy Authority and the man responsible for the running of all nuclear power stations in the UK, disappears without trace. Then MI5 intercept mysterious film footage of Quoit that apparently shows him defecting to Russian terrorists. But all is not as it seems. Has Quoit in fact been kidnapped? And what is the mysterious Operation Angel? Max Flynn is briefed to find out who the terrorists are, and which power stations they will sabotage, in a race against time to stop Britain being engulfed in a nuclear nightmare.