In October 1919, a group of black sharecroppers met at a church in an Arkansas village to organize a union. Bullets rained down on the meeting from outside. Many were killed by a white mob, and others were rounded up and arrested. Twelve of the sharecroppers were hastily tried and sentenced to death. Up stepped Scipio Africanus Jones, a self-taught lawyer who'd been born enslaved. Could he save the men's lives and set them free?