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 ...

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.