Watch Horizon: An American Saga - Chapter 1 (1) HD Full Movie Free on solarmovie.do. Watch Horizon: An American Saga - Chapter 1 (1) online free. Chronicles a multi-faceted, 15-year span of pre-and post-Civil War expansion and settlement of the A...Chronicles a multi-faceted, 15-year span of pre-and post-Civil War expansion and settlement of the American west.