Having passed his California Bar exam, Mark Sanger (Don Mitchell) is now qualified to practice law. This means that he no longer has time to work as bodyguard for Chief Ironside (Raymond Burr), compelling police sergeant Ed Brown (Don Galloway) to move in with the chief until a replacement can be found. Other new developments in Mark's life include his engagement to fellow lawyer Diana (Joan Pringle in her first regular series appearance)--not to mention his first case, involving an elderly grocery-store owner accused of murder. ~ Hal Erickson, Rovi