When daring cavalry officer William Fetterman arrives on the scene, Carrington's struggle to control his men only escalates.

After years of U.S. encroachment, Chief Little Turtle leads the Northwest Confederacy to a major victory over the young U.S. Army.

When Kansas becomes a battleground in the debate over slavery, settlers on both sides pour into the territory to determine its future.

David McCullough discusses the challenges faced by America's pioneers.