All 21 episodes from the first three series of the BBC comedy drama about the members of a British Army bomb disposal unit working in Afghanistan. Although their day-to-day jobs are deadly serious and a world away from life on Civvy Street, Captain Nick Medhurst (Oliver Chris) and the other heroes of Bluestone 42 soldier on, passing the time trading quick-fire banter and dodging tricky relationship issues as they forge their own unique camaraderie.