Scott Grey is a military nurse in the Queen Alexandra's Royal Army Nursing Corps and member of the Medical Emergency Response Team (MERT) at Camp Bastion in Afghanistan. His fiancee, Naomi Scarlet, a Royal Army Medical Corps Combat Medical Technician is out on patrol with The Royal Regiment of Scotland on a mission to secure and destroy a Taliban arms cache. Both are trying to put behind them the horrors they witnessed in Iraq, on this their second tour of Afghanistan. Naomi's patrol comes under attack from a Taliban sniper, one soldier dies and another is injured before he can be suppressed....