Hell on Wheels is an American Western television series about the construction of the first transcontinental railroad across the United States, which broadcast in the United States and Canada on the cable channel AMC, from November 6, 2011[2] to July 23, 2016. The series, which features Anson Mount, Colm Meaney, Common, and Dominique McElligott, chronicles the Union Pacific Railroad and its laborers, mercenaries, prostitutes, surveyors, and others who lived, worked, and died in the mobile encampment, called "Hell on Wheels", that followed the railhead west across the Great Plains.

In particular, the story focuses on Cullen Bohannon (Mount), a former Confederate soldier who initially joins the railroad to track down Union soldiers who murdered his wife and young son during the American Civil War. In the process he becomes a foreman and eventually chief engineer on the railroad.

https://en.wikipedia.org/wiki/Hell_on_Wheels_(TV_series)