The series chronicles the missions of "240-Robert", a specialized unit of the Los Angeles County Sheriff's Department (LASD), that utilized
four wheel drive vehicles and a helicopter. Most of the assignments were sea/air/land search and rescue operations in the extensive (over ) jurisdiction. The show's creator was
Rick Rosner (himself an LASD reserve deputy), who created the hit series
CHiPs two years earlier for
NBC. The vehicles used at that time were 1979
Ford Broncos, while the helicopter was a Hughes HA-500C (similar in design to the current
MD 500). The series was based on real life cases encountered by the LASD's Emergency Services Detail. The real life ESD is actually headquartered in
East Los Angeles. Rick Rosner took artistic liberty and portrayed the headquarters as a beach-side station. The actual filming location was at a State of California ranger station located at Sycamore Cove in
Ventura County, California. The series was inspired, in part, on the experiences of Officer Charles Thibaudeau of the Hermosa Beach Police Department. ==Cast==