Elite builders compete in a gruelling, seven-day race against the clock and so there's no hardware store in sight. The builders can only use the natural materials in their immediate surroundings. This…Elite builders compete in a gruelling, seven-day race against the clock and so there's no hardware store in sight. The builders can only use the natural materials in their immediate surroundings. This competition will test the primitive building skills that have allowed survivalists to thrive in the wilderness for generations.详情
