SAS 4-2

Oppo. The ultimate test in trust goes horribly wrong and a torturous casualty evacuation takes a devastating toll.

Celebrities undertake a series of extreme tasks, including jumping backwards out of a helicopter and hand to hand combat, as they begin the challenge of completing the gruelling SAS selection course.

Courage. Recruits summon all their courage to survive one of the most harrowing tasks on selection, but the debilitating exercise proves too much for one.