Violence erupts during the festival of Tin Hau Don in Chinatown; Cullen confronts the Swede; Durant gets Maggie involved in his latest scheme.
In the wake of the violence, Cullen solves a Chinese labor strike; Mickey is pulled deeper into Union Pacific Business.
Cullen must deal with the violence in Chinatown, caused by disgruntled workers; Phineas is manipulated in his plot against the Mormons.
Cullen enlists new workers to help him move a locomotive on a sled; Cullen and Fong must work together; Swede and Phineas fight for survival after being banished to the high country.
Cullen is in California with the Central Pacific Railroad, and must learn to contend with the new workers; word comes in from Salt Lake City about the Hatches.
Cullen goes to Salt Lake City in search of his family, while Campbell is appointed governor of Cheyenne and sets about enforcing the peace
Ruth pleads guilty to Sydney's murder, and is sentenced to be hanged. Cullen tries to persuade Campbell to pardon her, but she remains determined to accept her fate
Cullen tries to keep Sydney alive to spare Ruth the consequences of being his killer. Mickey summons a gang to help him take over the saloon, but finds he cannot control them
Durant and Campbell come to an arrangement to keep the peace, which leads to Cullen being made marshal. Sydney tries to burn down the church, while Eva gets her chance for revenge
Cullen tries to make Sydney release his imprisoned railroad workers before they are sent to prison, while Mickey comes up with a plan of his own to break them out
Cullen comes up with a plan to cross the mountain. Eva helps Charlotte to make a fresh start, Naomi decides to return to the Mormon settlement and Campbell appoints a new marshal
Elam returns to the railroad, but does not recognise Cullen. Durant plots his revenge, and is confronted by Delaney's wife, who wants to know the truth about her father's death
Elam is mauled by a bear, but is rescued by Comanches who believe he has gained the animals' power. He has suffered brain damage and begins to forget his old life
Cullen is reunited with an old friend from the Civil War who is fleeing an attempt on his life. Durant manages to get the better of Campbell, and Jessup takes over the casino
Cullen offers to help Durant find a route over the mountain, Jessup's men close down the casino, and the Swede tries to escape being sentenced to death by the Mormons
Cullen returns to the railroad camp and tries to get his job back. Durant plans to tunnel through a hill, despite Delaney's misgivings, and Campbell claims territory for himself
The Swede fears being unmasked as soldiers arrive at the Mormon settlement, Ruth considers sending Ezra to an orphanage, and a military officer plans to bring order to Cheyenne
Durant makes a disastrous attempt to cross a frozen river, jeopardising the future of the railroad. Cullen awaits the birth of Naomi's baby while plotting his escape
Cullen is captured by the Mormons, led by the Swede. He discovers Naomi is pregnant, and offers to marry her to make peace with her father
Maggie tries to persuade Cullen and Durant to settle their differences, while Ruth is racked with guilt following the recent tragedy, and decides to leave town
Cullen asks for Durant's help when he is tasked with persuading workers to return to the railroad after they leave for the Mormon fort, while Sean decides the time is right to confess his crimes. Western drama, starring Anson Mount and Colm Meaney
Cullen goes in search of a source of fresh water when the settlement suffers a cholera outbreak, and the Swede poses as a Mormon leader
Durant calls a halt to work on the railroad so that Cullen can be made to stand trial for the men he has killed. Elam deals with a dangerous newcomer in town
Cullen delays the next stage of the journey to organise a search for Eva's missing baby, but the freedmen are convinced Declan is responsible
The railroad's supply of lumber is burned, so Cullen and Elam make a dangerous journey into Kiowa territory to trade for the trees on their land. Durant reveals a secret to Louise. Western drama, starring Anson Mount, Colm Meaney and Jennifer Ferrin
The cattle pens are raided, so Cullen journeys into the prairie to recover the stolen animals. A stranger arrives in town who poses a threat to Elam's family. Drama, starring Anson Mount and Common
A reporter from New York writing a story on the railroad comes to Hell on Wheels, and Cullen faces a difficult choice when he discovers a Mormon homestead lies on their route
Cullen and Elam go to New York in search of work after a hard winter, while an imprisoned Durant strives to regain control of the railroad from his cell
Cullen and Elam secure their railroad positions in New York; Durant fights for his legacy from prison.
Part two of two. Cullen bands together with the railroad workers to save Hell on Wheels from an invading force. The military refuses to help as the town faces the Sioux attack, Lily learns Durant plans to have her killed, and the Swede takes his vengeance
Part one of two. The townsfolk celebrate the completion of the bridge. Meanwhile Cullen suspects the Sioux are preparing to attack and Durant has a deadly task for Elam
Durant returns to town accompanied by his wife. Lily fears her contributions to running things will be forgotten, and sabotage on the railroad leads to disaster
The railroad is thrown into crisis in the aftermath of the recent tragedy. Cullen tries to force a confession from the Swede, and Sean gives away a plot of land to the church
Doc is marked for death, but refuses Cullen's offer of help getting to safety so he can attend to a medical emergency. Durant tries to save the railroad while fighting for his own life, and the Swede forms an alliance with Cole and the Sioux
Hawkins plots to rob the railroad office, an ambitious undertaking that leads to Durant being shot and putting the town's future in peril. Meanwhile, Doc Whitehead discovers that Cullen is still alive, and The Swede employs harsh measures to keep Cole from drinking
A railroad sentry is killed by Sioux defending their sacred land, prompting the rest of the workers to rebel. Meanwhile, Lily tries to persuade Durant to change the route, and Elam gets some interesting news from Eva
Mickey and Sean are taken captive by Germans who believe they are behind the recent act of vigilante justice. While the mob is incited to murder them, Lily confesses to her involvement in the foreman's death
A Sioux war party attacks the town and Cullen is tortured in a bid to make him inform on his fellow criminals. Taking the initiative, Eva turns to Elam for help in bringing the murderer to justice
Cullen falls in with bandits and attacks the payroll train in the hope of funding a colony in Mexico, while a murder is committed in the town. With Lily now a major force in the design of the railroad, she and Durant push it west. Virginia Madsen guest stars
Cullen prepares for battle while the town celebrates; Cullen fights to save Hell on Wheels.
Cullen believes a war veteran in town is the man who killed his family, and must choose between his desire for revenge and the new life he has made for himself. Elsewhere, Durant and Lily conspire to gain investors' interests, while Elam and Eva each begin to see the future differently
Cullen and Lily strive to ensure the railroad meets its deadline as it approaches the important 40-mile mark, and Elam and Joseph face the consequences of their violent actions
A train is derailed by the Cheyenne, so Durant orders Cullen to track the offenders down. Lily moves into her own tent beside the brothel, and soon befriends Eva. Western, starring Colm Meaney, Anson Mount and Dominique McElligott
Cullen must decide how much he is willing to risk as Elam's life hangs in the balance. Durant faces financial ruin after hearing from government officials, and Lily confronts her dead husband's family. Western, starring Colm Meaney, Anson Mount and Dominique McElligott
Durant hopes to resolve his peace negotiations with the Cheyenne by issuing them with a challenge, while Cullen and Elam race to prevent an outbreak of violence in the town. Western, starring Colm Meaney, Anson Mount and Dominique McElligott
Joseph and Rev Cole travel into Cheyenne territory in the hope of brokering a peace deal. Cullen and his crewman Elam settle their differences in a public fight, while Lily and Durant continue to discuss the future of the railroad. Western, starring Eddie Spears and Tom Noonan
Former Confederate soldier Cullen gets closer to tracking down the sergeant, and Durant helps Lily recover from her ordeal, but has a hidden agenda. Elsewhere, Elam finds solace in the arms of social outcast Eva. Western, starring Anson Mount, Colm Meaney and Dominique McElligott
Durant organises a search party to find Lily, who is still lost in the wilderness, and Cullen encounters an unexpected obstacle as he looks for the missing sergeant. Western, starring Colm Meaney, Dominique McElligott and Anson Mount
Cullen fights for his life as he answers for his terrible actions, and Lily struggles to survive in the wilderness. Elsewhere, Durant tries to wring political gain from the recent tragedy. Western, starring Anson Mount, Dominique McElligott and Colm Meaney
Western drama following an American Civil War veteran searching for the Confederate soldier who killed his wife. His quest takes him to Hell on Wheels, a lawless mobile encampment peopled by workers constructing the first transcontinental railroad. Starring Anson Mount and Colm Meaney