Max Beesley, Jason Manford and Mackenzie Crook star in this BBC drama depicting the lives of those working at a car showroom. The series follows the seemingly ordinary employees of the JS car dealership who, beneath their superficial antics at work, are struggling to cope with the shady dealings of their personal lives. Salesman Marty (Manford) goes to extreme lengths to retain his job, receptionists Viv (Charrelle Skeete) and Tracy (Michelle Keegan) become involved in drug trafficking during a free holiday, mother of two and office gossip Kathy (Sally Lindsay) has an affair with a man she met online and owner Mike (Beesley) embarks on an affair with company secretary Beth (Jo Joyner) whose husband has been missing for over a year.

All eight episodes of the BBC crime drama following an undercover team of law enforcers. After leading a botched drugs bust, HM Revenue and Customs officer Marcus 'Ash' Ashton (O.T. Fagbenle) is chosen to head the new top-secret law enforcement squad known as the UNIT (Undercover Narcotics Intelligence Team) and is tasked with taking down key members of the criminal underworld. While Ash uses his knowledge of the street to fulfill his long-time goal of capturing high-level crime bosses and drug dealers, the team close in on their top target, notorious crook Roach (Trevor Eve).