The emotional clip features “The Valley” star Brittany Cartwright fighting tears as the intensity of the training mounts, while other recruits scream as they confront fear-inducing drills.

Kody Brown and Brittany Cartwright are among the reality stars who are facing big challenges in the first look at season 4 of Special Forces: World's Toughest Test. "In Special Forces, the weak do not ...

World's Toughest Test season 4 releases on Thursday, September 25, at 9 pm ET/PT on Fox. The episodes will be streaming the next day on HULU. The show will have 18 celebrity contestants from “all ...