Durant confronts a formidable threat to the rolling city, while a horrific crime leads Lily and Elam to join forces in order to attain justice.

Cullen struggles to maintain order while Mickey's and Sean's lives are endangered; Lily and Elam clean up a mess of their own doing.

A tragedy leads Cullen to defuse an internal threat to the railroad.

Cullen's past catches up with him and threatens the fate of the railroad.

Despite fighting to save his own life, Durant must try to keep the railroad from going under. Meanwhile, Cullen comes to the aid of an old comrade.

In the aftermath of tragedy, Lily and Cullen struggle to maintain order in Hell on Wheels. Meanwhile, Elam makes plans for the future.

A new arrival stirs things up in Hell on Wheels, while Eva gets caught between Elam and Mr. Toole.

Cullen prepares for battle while the town celebrates.

Cullen fights to save Hell on Wheels.