Shawnee warrior Tecumseh unites the Native American tribes to resist expansion. After Thomas Jefferson orchestrates the Louisiana Purchase, Lewis & Clark make their legendary expedition to the Pacific, and a new war for America begins.

Andrew Jackson rises to power and clashes with another national hero Davy Crockett over the U.S. policy towards the Native Americans and Jackson's Indian Removal Act. Meanwhile, a war with Mexico is brewing.

Davy Crockett makes a stand at The Alamo. President Polk risks war with Britain and Mexico, sending John C. Frémont and Kit Carson on a secret mission that ignites a war for California and the Pacific.