When Ursula Flockhart joins the British Army at 18 she is already a martial arts expert. She is recruited into a shadowy department called Special Operations, run by Colonel Peterson. One undercover assignment has her posing as a shop assistant named Colleen, in order to get close to, and to eliminate a senior IRA figure at the height of the troubles. Over a 25 year career, once peace is restored in Northern Ireland, she sees action in Iraq, Libya...