Denise Richards is opening up about a painful time in her life. In the Season 3 premiere of Special Forces: World’s Toughest Test, the Wild Things actress emotionally recalls the time she was sexually assaulted when she was 15.

Celebrities endure some of the harshest, most grueling challenges from the playbook of the actual Special Forces selection process in a new season airing on Wednesday, Jan. 8.

World's Toughest Test" returns for another season and two of the celebrities competing this season talk about their experiences and what we can expect.

"I've been through traumatic situations that have been very terrifying for me. I want to learn how to deal with those issues and be stronger," Richards explained on the first episode of 'Special Force

World’s Toughest Test airs tomorrow night on FOX. Cast members Denise Richards and Trista Sutters share their experiences on the show. The show features celebrities from all walks of life going through intense and highly demanding exercises led by ex-special forces operatives.

The actress admitted her daughters were "terrified" that she was "maybe not gonna make it home" from competing on 'Special Forces: World's Toughest Test'