The Winchesters team up with two other hunters to take on the chitters, cicada spirits who possess humans so that they can reproduce.
Cullen must deal with his transgressions and Elam isn't happy about his decision. With Lily now a major force in the design of the railroad, she and Durant push the railroad west.
Durant and Lily conspire to gain arriving investors' interests, after she pleads for Cullen to not let his vengeful path ruin him. Sean and Mickey McGinnes exact their own revenge on The Swede. Elam and Eva each begin to see the future differently. Cullen tracks down the elusive Sergeant Harper.moreless
Cullen Bohannon and the search party find the Cheyenne who attacked the surveyor's camp and later derailed a train; Elam and Eva discuss their future, before getting a strange visitor; and the railroad crew reaches the important 40-mile mark.moreless
Durant braces for financial ruin after hearing from the government officials. Cullen weighs the options of continuing on his destructive path. Lily meets with the family of her late husband, Robert Bell.
When Durant abruptly stops negotiating with the Cheyenne natives, Cullen and Elam will have to work together in order to save the lives of many in town.
Cullen Bohannon continues his vengeful quest of justice for his wife's murder; Lily Bell arrives at Hell On Wheels to learn more about her deceased husband's employer, Thomas Durant, and his railroad; and Elam finds solace in the arms of another social outcast, Eva, a prostitute.moreless
Balagan takes on his second case because he desperately needs the money. A high stakes poker game at the hotel prompts a robbery that he must solve. Also, Hugo asks for Balagan's help.moreless