“Horizon: An American Saga” is a multi-faceted chronicle covering the Civil War expansion and settlement of the American West. In the great tradition of Warner Bros. Pictures’ iconic Westerns, it explores the lure of the Old West and how it was won—and lost—through the blood, sweat and tears of many. Filmmaker Kevin Costner’s ambitious cinematic adventure will take audiences on an emotional journey across a country at war with itself, experienced through the lens of families, friends and foes all attempting to discover what it truly means to be the United States of America.