The mental game
S1, E3: To test how far his mental strength will stretch ahead of executing the strongman swimming attempt, Ross Edgley heads off to train with the Royal Marines, Britain's elite amphibious commando force.

S1, E3: To test how far his mental strength will stretch ahead of executing the strongman swimming attempt, Ross Edgley heads off to train with the Royal Marines, Britain's elite amphibious commando force.