Sam Tyler, a detective, gets hit by a car and wakes up in 1973 Manchester with the same job but believes he is in a coma. The narrative explores his adjustment to the 1970s setting through costumes, vehicles, smoking, and music from the era. As a time travel crime drama airing on BBC on Mondays at 9:00 pm, it targets both male and female older audiences who may have nostalgia for or new perspectives on 1970s Britain from experiencing it through the main character.