
Dr. Mark Sloan is chief of Internal Medicine at Community General Hospital -- and sometime consultant to the local police department. When he's drawn into a case, he combines sleuthing and medicine to solve the crime. That crime is usually one his detective son, Steve, is working on as a member of the local police department. Dr. Sloan's medical colleagues, including doctors Amanda Bentley, Jack Stewart and Jesse Travis, are also frequently drawn into his investigations.

Mark and Jack investigate a dating service that has a history of its male clients committing suicide.

A psychopathic ex-con (guest star Jack Coleman) plans to exact revenge against Sloan's son (Barry Van Dyke) by murdering Sloan (Dick Van Dyke).

Mark investigates when the star player of a professional women's volleyball team, in which Norman has been asked to invest, is murdered.

A lifeguard whom Dr. Sloan treats for fatigue becomes a murder suspect after a gorgeous swimmer drowns.