In the Season 1 finale, Cullen’s past and future collide, impacting his life on the railroad.

With Elam’s life in the balance, Cullen must decide how much he’s willing to risk. Meanwhile Durant faces financial ruin as Lily confronts the family of her late husband.

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.

Cullen’s search for the sergeant nears its end; Durant keeps to his hidden agenda while assisting in Lily’s recuperation.

When Lily goes missing, Durant organizes a search party. A subsidiary request prevents Cullen from his continued search for the sergeant involved in the murder of his wife.

Cullen fights to save Hell on Wheels.

Cullen prepares for battle while the town celebrates.

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

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

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

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

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.

In the Season 2 premiere, Durant and Lily steer the railroad further west, while Cullen and Elam land on opposite sides of the law.

A man is killing people and posing them in Vodun (Voodoo) tradition. Castle’s ex-wife announces her plans to move back to New York.

When Station 19 gets called to a structure fire at a coffee processing plant, the team risks their lives to save Station 42’s captain. Meanwhile, Ripley and Vic consider a…

When a prison bus crashes, all units must respond as some inmates face severe injuries while others seek an opportunity to flee. In the wake of the accident, Officer Nolan…

After digging up the skeletal remains of a young girl, the investigation points to a convicted serial killer on death row. The team follows cryptic clues that lead to another…

McGarrett poses as a pilot to investigate a plane crash that led to the death of a pilot in an air race.

Red tape hinders Holden’s plan to narrow his suspect pool. A weary and heartsick Bill tries to connect with his son. Wendy rethinks her relationship.

Hitting a dead end, Holden suggests a bold plan to draw the killer out. Bill’s family faces more scrutiny. Wendy chafes as her job begins to shift.

The FBI officially sends the BSU to Atlanta to investigate the missing and murdered children. Wendy second-guesses her interview methods.

Holden develops a controversial profile in the Atlanta slayings. Wendy conducts her first interview and finds being on the front lines suits her well.