The Iron Horse - Season 1 Episode 27 The Execution
Overview: When Calhoun's railroad is given the contract to haul for a mining company, it effectively puts the owner of the old coach freight line, who had the contract before, out of business. The freight company owner's inept sons decide to get back at Calhoun by robbing the railroad of the mining company payroll, and they hire a ruthless gunman to help them.