Staff Sergeant Dominic Riley is an ATO – Ammunition Technical Officer – he’s the guy in the heavy suit that has to disarm the bomb when one is found. It’s a dangerous job, to say the least. But now he’s back home, far away from the war in Afghanistan…or so he thinks. Sergeant Dominic Riley is a compulsory therapy session when a bomb is detonated in Nottingham city centre. Even though he isn’t on duty, he rushes to the scene.