UFC 13: Ultimate Force was a mixed martial arts event held by the Ultimate Fighting Championship on May 30, 1997 in Augusta, Georgia. The event was seen live on pay per view in the United States, and later released on home video.

The story of two of the most polarizing wrestlers in the history of the sport, Tom and Terry Brands. See how these small-town Iowa twins grew up to become international wrestling stars, Olympic champions and distinguished coaches. Hear from legends in the sport like Dan Gable, John Smith and more about the impact of the Brands brothers on and off the mat.

UFC 21: Return of the Champions was a mixed martial arts event held by the Ultimate Fighting Championship on July 16, 1999 at the Five Seasons Events Center in Cedar Rapids, Iowa. The event was seen live on pay per view in the United States, and later released on home video.