On May 18-19, 2007, two legendary 4-8-4 Northern-type steam locomotives - Union Pacific's #844 and Southern Pacific's #4449 - made history by double-heading for the first time. This program follows the locomotives - which each took turns on the point - as they lead an excursion train between Tacoma and Everett, Washington. Includes bonus footage of diesel-powered freights on BNSF's double-track main line. Color, 2 hours. #0RV9146