The recruits are subjected to a multi-stage process of interrogation and are placed under gradually increasing duress.

Special Forces: World's Toughest Test

Interrogation

The remaining recruits carry tires, ropes and chains up a mountain; the recruits are split into two teams to attempt an extraction operation.

Evasion

The remaining recruits are paired up to find a vital intelligence package and retrieve a hostage before the compound is filled with deadly gas and explodes; the recruits compete against each other in an excruciating obstacle course.

Composure

The recruits are split into teams and compete to be the first group to complete an intensive race in the blistering heat; in pairs, the recruits backwards dive off a platform in sync, facing their fears through teamwork.

Trust

The recruits must focus as they plummet down a 330-foot drop, then at the bottom, they must recite a set of coordinates which they were asked to memorize prior to the drop; the recruits are challenged to navigate through tight tunnels and trenches.

Mind Set

The recruits must communicate effectively to identify fallen comrades in a casualty evacuation test behind enemy lines; when their team's mission is compromised, they must cross rooftops to make it to extraction.

Warzone

The recruits must escape a sinking plane and go head-to-head in an intense, military-style boxing match.

Survival

The recruits must repel out of a military-grade helicopter; the recruits get a taste of what it's like operating behind enemy lines as they carry supplies weighing 800 pounds in sweltering 100-degree heat.

Behind Enemy Lines

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Celebrities endure some of the harshest, most grueling challenges from the playbook of the actual Special Forces selection process.

S4 E3 | Warzone

E9 | Interrogation

E8 | Evasion

E7 | Composure

E5 | Trust

E4 | Mind Set

E3 | Warzone

E2 | Survival

E1 | Behind Enemy Lines