A looming railroad deadline throws Cullen and Lily together; Joseph and Elam deal with what their violent mission has wrought.

Durant dispatches Cullen and Elam on a mission of vengeance. Lily struggles to find her place.

Durant challenges the Cheyenne to a competition in an effort to bring a halt to ongoing negotiations. Meanwhile, Elam and Cullen try to prevent bloodshed in town.

A bare-knuckle brouhaha between Elam and Cullen is spurred by Durant’s latest attempt to deal with the railroad’s financial crisis.

A former confederate soldier journeys to the transcontinental railroad to seek vengeance.