Throughout the 13-week series viewers will experience one of the best wilderness areas in North America. Four riders, accustomed to a city environment, take part as they meet with different tour guides and hone riding skills while traversing through Banff National Park in Western Canada.

Now, ABC’s Nightline has picked up the story and created a video special featuring Kerr and his family. The piece touches on Kerr’s relationship with his daughter, Kelsey, who participated in the competition for the first time this year and shows how a “wild horse” and a “wild girl” have come together to form a remarkable partnership.

The trials, tears and triumphs of five Mustang trainers on their way to Mustang Million will be featured in a new three-part miniseries on Nat Geo WILD. “Mustang Millionaire,” airing December 14, 21 and 28, 2013 at 10 p.m. EST, gives you a backstage pass to all the action from the adoption auctions to the sold-out Legends freestyle finals.