UNDERGROUND RAILROAD: THE WILLIAM STILL STORY is the story of a humble Philadelphia clerk who risked his life shepherding runaway slaves to freedom in the tumultuous years leading up to America's Civil War. William Still was the director of a complex network of abolitionists, sympathizers and safe houses that stretched from Philadelphia to what is now Southern Ontario. The film shares the remarkable life story of one of the most important yet unheralded individuals of the Underground Railroad.