The second season of Hell on Wheels is fantastic. It escapes from the most obvious American series cliches by showing anti-heroes lacking almost any quality or decency and through a depiction of violence that is repugnant and realistic. It's not sadistic, not moralistic, and not condescendent. It's just realistic.
The jump in quality from the first to the second season follows the rejection of PC and multiculturalist formulas. I hope more American productions will follow its example.