The British detective drama revolves around Detective Chief Inspector Barnaby's efforts to solve numerous murders that take place in the fictional English county of Midsomer. The current lead character is Detective Chief Inspector John Barnaby (Neil Dudgeon), who is the younger cousin of former lead character Detective Chief Inspector Tom Barnaby (John Nettles). The Barnabys have worked with several different Sergeants throughout the run of the show, including Sergeant Gavin Troy (Daniel Casey), Sergeant Dan Scott (John Hopkins), Detective Sergeant Ben Jones (Jason Hughes), Detective Sergeant Charlie Nelson (Gwilym Lee), and Sergeant Jamie Winter (Nick Hendrix).