Brittany Cartwright found it "really difficult" being away from son Cruz while she completed her Special Forces: World's Toughest Test training. "I had never left my son that long, and [the show's] very strict on, like, if you can call somebody," Brittany, 36, exclusively told Us Weekly while promoting season 4 of the Fox competition. "You're by yourself there. So, that was really difficult for me because I've never, ever been gone from Cruz more than two or three days on a work trip." Brittany shares son Cruz, 4, with estranged husband Jax Taylor, from whom she filed for divorce in 2024.