Plot: Simon Schama explores the artists at the vanguard of the fight for equality in the decades after the Second World War. He revisits his childhood as a Jewish boy in Southend and his memories of seeing James Baldwin debate William Buckley at the Cambridge Union, explores the story behind Nina Simone's classic civil rights song Mississippi Goddam, and meets Coleman Woodson Junior, who was part of the historic Selma to Montgomery march in 1965