Halfway through their commando training, the recruits of 924 Troop are pushed to new physical and emotional limits prior to their deployment to Afghanistan. Meanwhile, Second Lieutenant Bertie Kerr, just three weeks out of training, leads his troop into enemy territory and comes under fire from the Taliban.
Adam Collins of 924 Troop makes a shocking accusation against his training team after being admonished for failing to achieve high standards. In Afghanistan, Bertie Kerr and his comrades dig in on a remote mountain and brace themselves for a possible attack by Taliban forces.
Bertie Kerr and his men find themselves fighting for their lives as they embark on a dawn assault against an enemy-held mountain in Afghanistan. Back in Devon, the remaining recruits of 924 Troop are on their final military training exercise before they too will be deployed on the front line.
The successful soldiers fly to Afghanistan, where they join Bertie Kerr's 11 Troop to begin sentry duties as well as taking on day and night patrols in the war-torn country. The programme shows how the new recruits react to the harsh realities of battle and how those who have been taking part in the conflict cope with the death of a comrade.
Eight years ago Chris Terrill's Commando: On the Front Line told the intimate, inspiring and often terrifying story of young Royal Marines going through 32 weeks of intensive training and being deployed in an increasingly ferocious war against the Taliban. Chris put himself through the same regime to try and see the world through their eyes and understand war the way a soldier does. After eight months, he accompanied the newly trained commandos to Afghanistan and into battle. Most importantly, he followed Bertie Kerr, a young officer who was leading his men in a dangerous attack on an enemy stronghold. Eight years on and one war later, Chris and Bertie return to Afghanistan to see for themselves what has changed in the country. As British and American troops prepare to pull out, they examine whether the war was worth fighting. It proves an emotional journey, but one that is also full of surprises.
Whilst filming "Commando on the Front Line", Chris Terrill also recorded his own attempt to become the oldest man to get through the gruelling Royal Marines Commando training programme.
