Common (L) and Anson Mount in AMC's "Hell on Wheels"

*AMC is set to announce a season 2 of its Old West drama “Hell on Wheels.”

Sources tell The Hollywood Reporter that the cable network is expected to announce a formal renewal of the freshman series starring Anson Mount and Common in the coming days.

The program, which revolves around the building of the first transcontinental railroad, became AMC’s second-highest original series premiere when it launched in November behind the net’s zombie hit “The Walking Dead,” drawing 4.4 million total viewers, and an impressive 2.4 million in the key adults 18-49 demographic.

The Western now marks the fifth of six original series to stretch beyond first seasons as AMC continues to find success with scripted fare, joining “Walking Dead,” “Mad Men,” “Breaking Bad” and “The Killing.” In addition, the series has proven a valuable property internationally.

The Season 1 finale is set for Jan. 15.