James Franco and Maggie Gyllenhaal return for the sophomore season of one of the best shows you're probably not watching next month.

Created by George Pelecanos and David Simon of 'The Wire' fame, 'The Deuce' follows the story of the legalization and subsequent rise of the porn industry in New York’s Times Square from the early 1970s through the mid-1980s, exploring the rough-and-tumble world at the pioneering moments of what would become the billion-dollar American sex industry.

In the latest trailer, the cops are cracking down on sex work as Maggie Gyllenhaal's Candy is stepping into her director and producer role behind the scenes as the business starts to take off, while Franco's twin brothers Vincent and Frankie Martino are continuing to get deeper into the game..

'The Deuce' returns to HBO on Sunday September 9th, and is expected on Sky Atlantic the following evening but is yet to be confirmed.