Individual acts of courage inspire black Southerners to fight for their rights: Mose Wright testifies against the white men who murdered young Emmett Till, and Rosa Parks refuses to give up her bus seat to a white man in Montgomery, Alabama.

States' rights loyalists and federal authorities collide in the 1957 battle to integrate Little Rock's Central High School, and again in James Meredith's 1962 challenge to segregation at the University of Mississippi. Both times, a Southern governor squares off with a U.S. president, violence erupts -- and integration is carried out.

Black college students take a leadership role in the civil rights movement as lunch counter sit-ins spread across the South. "Freedom Riders" also try to desegregate interstate buses, but they are brutally attacked as they travel.

The civil rights movement discovers the power of mass demonstrations as the Rev. Martin Luther King, Jr. emerges as its most visible leader. Some demonstrations succeed; others fail. But the triumphant March on Washington, D.C., under King's leadership, shows a mounting national support for civil rights. President John F. Kennedy proposes the Civil Rights Act.

A decade of lessons is applied in the climactic and bloody march from Selma to Montgomery, Alabama. A major victory is won when the federal Voting Rights Bill passes, but civil rights leaders know they have new challenges ahead.