Who has what it takes to be a frontline soldier? At Britain's biggest garrison, fresh recruits are pushed to the limit - physically and mentally. Only the very best will make it.
In the final episode, we see which recruits can overcome the remaining hurdles to prove they are able infanteers who could be deployed at any minute. Forty-five recruits signed up to D1 platoon, now just over half remain. In the final weeks, only those that meet the army’s high standards will make it through.