Davy Crockett makes a stand at The Alamo; President Polk risks war with Britain and Mexico, sending John Fremont and Kit Carson on a secret mission that ignites a war for California and the Pacific. See more in Season 1, Episode 4, "Empire of Liberty." #TheMenWhoBuiltAmerica Find out more about this and other specials on our site: http://www.history.com Don't miss a video! Subscribe NOW: https://www.youtube.com/@HISTORY?sub_confirmation=1 “The Men Who Built America: Frontiersmen” spans a formative period of history featuring the first 75 volatile years of the United States – from the Revolution through the California Gold Rush – where Daniel Boone, Meriwether Lewis and William Clark, John Frémont, Davy Crockett and Andrew Jackson set forth across uncharted land with determination and self-reliance. The HISTORY® Channel, a division of A+E Global Media, is the premier destination for historical storytelling. From best-in-class documentary events, to a signature slate of industry leading nonfiction series and premium fact-based scripted programming, The HISTORY® Channel serves as the most trustworthy source of informational entertainment in media. The HISTORY® channel has been named the #1 U.S. TV network in buzz for seven consecutive years by YouGov BrandIndex, and a top favorite TV network by Beta Research Corporation. For a deeper dive, visit history.com or follow @history on Instagram, Twitter, Facebook, YouTube and TikTok.