Tough Mudder: The Challenge Within chronicles a group of "everyday heroes" as they come together to overcome their personal challenges and accomplish completing a Tough Mudder. Deemed as "probably the toughest event on the planet," Tough Mudder tests teamwork skills and pushes one's physical abilities and mental grit. Shot in a documentary style, the show will feature the rawness of real human experience and the high-stakes, unscripted drama of each team members' own personal stories as they face different obstacles and fears not only on the course, but also in life. Episode 1 - 4 will air on the CW seed and the final 2 episodes are airing on the CW.