Twenty celebrities from the world of sports and entertainment take on the army training challenge and are put through a gruelling special forces selection course. The recruits are David Gillick, Fiona O'Caroll, Peter Finn, Billy Holland, Luke Thomas, Aisling Daly, Setanta Ó hAilpín, Oisin Murphy, Johnny Ward, Blathnaid Treacy, Pamela Uba, Eric Donovan, Paul Ryder, Eoin Cadogan, Rebecccah O'Rourke, Boidu Sayeh, Fergus McFadden, Tadhg Fleming, Ciara Griffin and Michael McKiliop.