It's a rivalry of strength and honor when Ronnie and Christopher, Army friends from Atlanta, take on Air Force co-workers Erica and Kevin from Palm Beach, Fla. Who will waive the white flag and who will claim victory?

It's a cross-country cage fight as brothers Jose and David, from Union County, N.J., take on cousins Aalyssa and Kimberly from Los Angeles, Calif. Find out which family proves their coast is the best coast.