This insane obstacle course challenge pushes competitors to their absolute limits, featuring towering walls, brutal mud crawls, balance-breaking beams, and heart-pounding sprint sections designed to break even the toughest athletes. Every second counts as challengers fight through exhaustion, fear, and adrenaline for a shot at the $100,000 cash prize, with only those who refuse to quit making it to the final buzzer. One mistake can end it all — but finish the course, and you walk away a champion

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The five toughest U.S. military training obstacle courses