SAS: USA

A new troop of 14 household names face the harsh reality of winter warfare training in the mountains of New Zealand, where the terrain and freezing temperatures are brutal, and the tasks feel like torture.

The remaining recruits are tasked with submerging themselves in icy water and then simulate infiltrating enemy infrastructure by racing each other down a 330-foot dam.

The celebrity recruits must safely protect a convoy under a surprise attack; the ambush challenges their ability to make decisions in extreme conditions and tests who is strong enough to remain composed in the face of danger.

The remaining recruits are tasked with a 2-mile race and navigating treacherous terrain while carrying a 220-pound boat.

The remaining recruits are taken to the top of a mountain range, where they will use a single rope to crawl across a deadly ravine.

The recruits face the most dangerous task yet, a helicopter survival drill, as a test of their ability to mentally handle a life-or-death situation.