One by one, the recruits must pull themselves across a 300-foot-wide ravine, before dropping 160 feet to the extraction point. An early-hours beasting is designed to weed out the weakest recruits. The recruits must also prove to the supervisors that they have what it takes mentally when they're offered a phone call to their loved ones back home.

For their final challenge, the five remaining celebrities endure intense interrogation, the most feared phase of the course. They must go through psychological and physical punishments designed to break their will and force a confession.