In the Season Finale of Hell on Wheels, Cullen's new life on the railroad is put in jeopardy when he is forced to choose between his past and his future, while Elam must make a decision about his own future with Eva. Learn more about what happens by checking out the online extras below for the Hell on Wheels Season Finale, "God of Chaos":

• Ten production stills of the Season Finale

• An "Inside Hell on Wheels" video that takes you behind the scenes of the Season Finale

• A trivia game to test your memory of the Season Finale

• An open thread in the Talk Forum for this episode (Share your thoughts with fellow fans)

Also worth your attention:

• Photos of the real Thomas Durant

• Photos of the real Hell on Wheels camps

• Full episodes of The Rifleman

• A quick guide to Western movies

• Two full-length Western movies online

Throughout the season, AMC viewers are invited to participate in a weekly Hell on Wheels Watch On TV / Chat Online event, which allows fans to chat LIVE online with other viewers in real time while watching the latest episode on-air on AMC.

Want to join the conversation? Log onto the Talk forum Sunday night then start chatting in the comments section. Sunday's East Coast Watch & Chat begins at 10/9c; the West Coast Watch & Chat starts at 10PM PT.

Click here to join this Sunday's Season Finale Watch On-Air / Chat Online event.

In Episode 9 of Hell on Wheels, Cullen and Lily work to meet the railroad's looming deadline, while Elam and Joseph deal with the consequences of their violent mission. Learn more about what happens by checking out the online extras below for Episode 9, "Timshel":

• Ten production stills of Episode 9, plus two sneak peek photos of the season finale

• An "Inside Hell on Wheels" video that takes you behind the scenes of Episode 9

• A trivia game to test your memory of Episode 9

• An open thread in the Talk Forum for this episode (Share your thoughts with fellow fans)

• See what happens next with a sneak peek video from the season finale, "God of Chaos"

Also worth your attention:

• Photos of the real Thomas Durant

• Full episodes of The Rifleman

• A quick guide to Western movies

• Two full-length Western movies online

Throughout the season, AMC viewers are invited to participate in a weekly Hell on Wheels Watch On TV / Chat Online event, which allows fans to chat LIVE online with other viewers in real time while watching the latest episode on-air on AMC.

Want to join the conversation? Log onto the Talk forum Sunday night then start chatting in the comments section. Sunday's East Coast Watch & Chat begins at 10/9c; the West Coast Watch & Chat starts at 10PM PT.

Click here to join this Sunday's Episode 9 Watch On-Air / Chat Online event.

In Episode 8 of Hell on Wheels, Durant sends Cullen, Elam and Joseph on a mission of vengeance, while Lily struggles to find her place in Hell on Wheels. Learn more about what happens by checking out the online extras below for Episode 8, "Derailed":

• Ten production stills of Episode 8, plus two sneak peek photos of next week's show

• An "Inside Hell on Wheels" video that takes you behind the scenes of Episode 8

• A trivia game to test your memory of Episode 8

• An open thread in the Talk Forum for this episode (Share your thoughts with fellow fans)

• See what happens next with a sneak peek video from Episode 9, "Timshel"

Also worth your attention:

• Common's music video, "Celebrate"

• Behind the scenes video of "Celebrate"

• An Ultimate Fan Game for Hell on Wheels star Common

• An Ultimate Fan Game for Hell on Wheels star Anson Mount

• A quick guide to Western movies

• Two full-length Western movies online

• A Hell on Wheels music video featuring The Straight Shot's "Can't Make Tears"

Throughout the season, AMC viewers are invited to participate in a weekly Hell on Wheels Watch On TV / Chat Online event, which allows fans to chat LIVE online with other viewers in real time while watching the latest episode on-air on AMC.

Want to join the conversation? Log onto the Talk forum Sunday night then start chatting in the comments section. Sunday's East Coast Watch & Chat begins at 10/9c; the West Coast Watch & Chat starts at 10PM PT.

Click here to join this Sunday's Episode 8 Watch On-Air / Chat Online event.

In Episode 7 of Hell on Wheels, Cullen holds Elam's fate in his hands, while Durant schemes to avert financial ruin and Lily confronts her dead husband's family. Learn more about what happens by checking out the online extras below for Episode 7, "Revelations":

• Ten production stills of Episode 7, plus two sneak peek photos of next week's show

• An "Inside Hell on Wheels" video that takes you behind the scenes of Episode 7

• A trivia game to test your memory of Episode 7

• An open thread in the Talk Forum for this episode (Share your thoughts with fellow fans)

• See what happens next with a sneak peek video from Episode 8, "Derailed" (The next episode airs Sun., Jan. 1)

Also worth your attention:

• The exclusive world premiere of Common's new music video, "Celebrate"

• Behind the scenes video of "Celebrate"

• An Ultimate Fan Game for Hell on Wheels star Common

• An Ultimate Fan Game for Hell on Wheels star Anson Mount

• Two full-length Western movies online

• A Hell on Wheels music video featuring The Straight Shot's "Can't Make Tears"

Throughout the season, AMC viewers are invited to participate in a weekly Hell on Wheels Watch On TV / Chat Online event, which allows fans to chat LIVE online with other viewers in real time while watching the latest episode on-air on AMC.

Want to join the conversation? Log onto the Talk forum Sunday night then start chatting in the comments section. Sunday's East Coast Watch & Chat begins at 10/9c; the West Coast Watch & Chat starts at 10PM PT.

Click here to join this Sunday's Episode 7 Watch On-Air / Chat Online event.

In Episode 6 of Hell on Wheels, Durant challenges the Cheyenne to a competition while Cullen attempts to prevent bloodshed in town and Lily discovers the truth about her husband's murderers. Learn more about what happens by checking out the online extras below for Episode 6, "Pride, Pomp and Circumstance":

• Ten production stills of Episode 6, plus two sneak peek photos of next week's show

• An "Inside Hell on Wheels" video that takes you behind the scenes of Episode 6

• A trivia game to test your memory of Episode 6

• An open thread in the Talk Forum for this episode (Share your thoughts with fellow fans)

• See what happens next with a sneak peek video from Episode 7, "Revelations"

Also worth your attention:

• An Ultimate Fan Game for Hell on Wheels star Anson Mount

• An Ultimate Fan Game for Hell on Wheels star Common

• Two full-length Western movies online

• A Hell on Wheels music video featuring The Straight Shot's "Can't Make Tears"