Detective Constable 'Dangerous' Davies (Peter Davidson) is the lowest man on the totem pole in his London police station and is the last detective his boss would assign to a major case. Davies is a bumbling underdog who is not respected by his colleagues and only given the cases no one else wants. Despite this, he does his job with determination and intelligence and somehow manages to solve major cases.
The audience gets views of Davies' personal life, including his ex-wife (whom he is still in love with), his dog, and his quirky friend, Mod. This British series (comprised of four seasons) is a gentler version of police procedurals, with some humor and no gratuitous violence.