The Pendragon was the ultimate product of 1950s advances in engineering. A revolutionary steam locomotive, it crashed on its first run. Rachel Ewen stumbles on the story of the Pendragon while doing research for a cable television series. Eager to learn more, she calls Peter Selfridge, an engineer on the project who is days from retirement and eager to put the whole mess behind him forever. He tries to convince Rachel there is no story worth pursuing. There is.