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 ...

Kody Brown and Brittany Cartwright are among the reality stars who are facing big challenges in the first look at season 4 of ...