St. Louis (KSDK) - It's called the world's largest running series, and is held on 50 rugged terrains across the world. This weekend it's in St. Louis.
Warrior Dash isn't your average race. It's called a fierce event that brings together a traditional 5K with 12 obstacles and it's all to raise money for St. Jude Children's Hospital.
We have a map here of the course, it looks kind of brutal.
Race Director Mike Brant joined First @ 4 to talk about the race.
Click the video player above to learn more about the event.
To register for the race, visit the Warrior Dash website.