A "Head End" ride on an Amtrak AEM-7 electric engine over the former P.R.R, main line from Union Station, Washington, D.C. to 30th Street Station, Philadelphia, PA at speeds up to 120 M.P.H. You will see many Amtrak, Washington Metro, Conrail, and SEPTA trains, stations, signal towers, pass through the Baltimore tunnels, cross the Gunpowder, Bush, and Susquehanna River Bridges, and view the Baltimore, Wilmington, and Philadelphia skylines before arriving at 30th Street Station. Narration referring to speed, signal indication, track designation, cities, stations, towers, and other points of interest, as well as radio transmissions of trains, tower operators, and train dispatches highlights the entire trip. 60 Minutes - Color - Sound