At a time when immigration reform continues to be one of the most heated topics in political and business circles, this 2-hour special reexamines the controversial war that resulted in the United States taking control of what was nearly half of Mexico's territory. Featuring lavish reenactments, and interviews with both Mexican and American historians to ensure accuracy from both nations' points of view, we convey the story of President James K. Polk's desire to expand US territory to the Pacific Ocean. Hosted by boxing legend Oscar de la Hoya, we also travel to Mexico City to visit the historic Castillo de Chapultepec, where the climactic battle of the war took place, and the Palacio Nacional, the home of Mexico's government.—History Channel