American Ninja Warrior Superstars Mighty Kacy Catanzaro and Brent Steffensen take Mud Run Guide's Brett Stewart on a tour of their “secret” training grounds, Alpha Warrior in San Antonio, TX. We test out the Salmon Ladder, Devil's Steps, Spider Wall, Warped Wall and more!
More ANW-goodness from Mud Run Guide
Want to Train For American Ninja Warrior, learn more about OCR Warrior, or catch an episode of Ninja Quickie? Check out our American Ninja Warrior Training Gyms Guide here!