The camaraderie and explosive action continues in this comedy drama about a British bomb disposal detachment in Afghanistan. Matthew Lewis, best known as Neville Longbottom in the Harry Potter films, joins the series as Nick’s new number two, Corporal Gordon ‘Towerblock’ House. Towerblock ruffles a few feathers and brings out the competitive side of Nick, much to Bird’s amusement. The team is warned to be on best behaviour for a visit from the Minister for the Armed Forces, who Mary takes a shine to; they push Simon to the brink of madness, and join together to track down the new Taliban bomber who is targeting Nick.