harassing the people at the station. >> so there was animosity between david and wild bill hickok. (indiscernible) >> hickok's dislike for bullies traces back to his youth in illinois. as a young boy, hickok grows up withable ligsist parents. his parents are part of the under ground railroad that helped slaves escape to freedom. >> the under ground railroad was a network of trails and safe houses that helped people escape slaves. it was illegal to do what they were doing, but many would be involved for what they would call higher law, higher calling. >> hickok is expected to help despite the risk of being caught by bounty hunters and shot dead. >> hur ry hurry, pa, they are catching up.