In 1956, America announced a new Cold War weapon to combat the USSR; jazz musicians like Louis Armstrong, Duke Ellington, Dizzy Gillespie and Dave Brubeck, along with their racially-integrated band, would cross the globe to counter negative Soviet propaganda about racial inequality in America. But the unfolding Civil Rights movement back home forced these cultural ambassadors into a moral bind; how could they promote a tolerant image of America abroad when equality remained an unrealized dream? This is the story of how jazz musicians fought back, winning Civil Rights a voice on the world stage when it needed one most.