The third and final episode of the series follows a private and her dog on patrol in Afghanistan, a corporal and his Labrador as they search for explosives and one soldier and her dog as they come under fire from insurgents whilst on patrol on the front line with their unit.
Animal Heroes also catches up with the trainees at the Defence Animal Centre as their course draws to an intense and challenging close. They are put through their paces as they go on exercise with all their kit and their dogs for the first time and are then put under pressure in a simulated prison riot exercise.
Plus they face their toughest challenge yet when they are dragged from sleep in the middle of the night and asked to use their dog to help interrogate a suspect – this is against every rule in the book, but will the trainees buckle under the pressure?