Special Forces - Ultimate Hell Week

ROK UDT - South Korea (2x4)

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The fourteen remaining recruits are now halfway through but are about to face their toughest expert yet, Ken. Reggie Yates brings the contestants to South Korea to train under an officer from the country's Underwater Demolition Team. The recruits face a series of gruelling challenges, including dragging truck tyres up hills, carrying boats on their heads and facing the unusual exercise known as the Thinking Man Position.