In 1836, General Santa Anna and his Mexican army defeat the Texian uprising at the Alamo, along with Davy Crockett, who was one of the last survivors. This spurs on Sam Houston to form an army and avenge Crockett's death. President James Polk wants to further expand the United States to the Pacific. In 1842, Polk assigns surveyor John Frémont and his guide Kit Carson to chart a path to the Northwest. They are tasked with secretly inciting a rebellion to take California, which later ignites a war with Mexico. Part of "The Men Who Built America: Frontiersmen" series. Please note this title contains reenactments of battle scenes.