John Logan a British Army Sergeant takes leave from Afghanistan & returns to London to free his sister & her daughter from the control of psychotic Serbian gangster Miroslav Nikolic. But no plan survives contact with the enemy & Logan should have known better. Becoming both predator & prey on the gritty streets of London the boundaries of loyalty & friendship become blurred as Logan is drawn into the dark & shadowy world of spooks drug traffickers & gunrunners where nothing is what it seems & trust walks hand in hand with ultimate betrayal.