Bonnie Ebsen, the real life daughter of Buddy Ebsen, makes her fourth, of six, appearances on Barnaby Jones.
The title of this episode is a reference to "The Bermuda Triangle", an area of the Atlantic Ocean running roughly from the southern tip of Florida west through the Bahamas to Puerto Rico, north to Bermuda, and back to Florida where a number of ships and planes are said to have disappeared under mysterious circumstances.