Behind the scenes of one of the most arduous basic military training programmes in the world. Each episode focuses on a cross-section of trainees that are either struggling or excelling at the physical and mental challenges the training presents.
As the recruits reach the end of training, thoughts turn to life beyond Lympstone. A familiar face, Corporal `Froggy' Chauffour, returns to prepare the troop for a final pass-out parade, and four contenders compete for the coveted King's Badge award, which the winner will carry with them throughout their career. Meanwhile, retiring Troop Commander `Ginge' Booth contemplates a future beyond the Royal Marines after 28 years of service.