Watch Iron Horse (1966) Episode 1 HD Full Free on SolarMovie. Watch Iron Horse (1966) tv series online free. Ben Calhoun won the half-completed Buffalo Pass, Scalplock, and Defiance Line railroad in a poker ga...Ben Calhoun won the half-completed Buffalo Pass, Scalplock, and Defiance Line railroad in a poker game and must interact with 1880s first nation, bankers, and bad guys to complete the line.