A cargo ship is apprehended by the authorities off the coast of Spain, packed with enough arms and ammunition to start a war. Twenty years later, an unknown aggressor seems intent on taking out those responsible for the treachery – one by one.

The last victim was brutally tortured with a Black & Decker drill and then shot through the head at point-blank range.

And Nick Stone – ex-SAS, tough, resourceful, ruthless, highly trained – is next on the killer's list. He has only two options – fight or flight – but which do you choose when you don't know who you are up against?