Two young hot rodders, Reuben and Smitty, are driving around the town of Big Pine. Sam Potter; an elderly, well-known resident; steps out in front of the boys. The car hits Sam and Sam dies. The boys are scared and run away and hide.
Bill and the fellas arrive just after the accident and investigate. Meanwhile some of the men in town find the boys and want to lynch them. Bill saves the boys and jails them. Bill must now gather evidence to determine if the boys hit and killed Sam. See what Bill finds at the scene of the accident and from Sam's doctor who examined Sam's body.