Radioactive nuclear waste is smuggled into the UK to be used to manufacture a "dirty bomb". In the wrong hands it will mean a slow, agonising death for hundreds, possibly thousands of people.

A young man is kidnapped by MI5 and is blackmailed into working deep undercover for them. He must find the bomb before the terrorists can plant it. If he fails then the whole of London may pay the price. But where do his true loyalties lie? Might he be one of the terrorists?

In the meantime, inside MI5, all is not as it seems. Intrigue and betrayal stalk the corridors of Thames House and the vanity of one man puts the whole of London at risk.

Be afraid, London. Be very afraid.

This is the much anticipated sequel to The Warriors: The Girl I Left Behind Me.