From the recruits' very first challenge - a terrifying backwards dive out of a helicopter - Ant Middleton and his team are determined to show there will be no allowances made. Later, the celebrities have to overcome more fears.
The remaining celebrity recruits face a final, brutal challenge at the El Morado glacier, 3000 metres above sea level. A dozen celebrities started, but only a few have what it takes to complete the course.
Twelve celebrities, from Katie Price to Joey Essex, leave their glamorous homes to take on the SAS selection course, the toughest challenge of their lives. Who will pass this test?
The celebrities are paired up to prove that they're team players, and must put their lives in each other's hands, in a terrifying free fall abseil. They must leave their celebrity world behind and learn to trust their partner to keep their place.
Chief instructor Ant Middleton and his directing staff put the celebrity recruits through a series of tests. One celebrity recruit collapses on a mountain and another is badly affected by the extreme cold, as they face brutal challenges.