The series pilot was broadcast as an episode of Panic!.[2]: 146
The show aired on Thursdays at 9:30 p.m. Eastern Time. Reruns were broadcast on ABC-TV on Sundays at 10:30 p.m. from December 1959 to March 1960.[3]
Leonard Heideman was the show's creator.[2] The series' first episode was "The Rub-Out".[4]
Premise
Dennis Chase was a private investigator with an office on 21 Beacon Street, in an unspecified city.[3] Chase was aided by Joanna Barnes as Joanna, who was a combination of beauty and brains. She was able to glean information and then act as a decoy. Brian Kelly was Brian, a young law school graduate; and James Maloney played Jim, an expert on dialects, as well as a skilled craftsman.[5]
Chase and his assistants worked to discover who the criminals were, but then notified the police to come and apprehend the law breakers.[3]
Forerunner to Mission Impossible
The producers of Mission: Impossible were sued for plagiarism by the creators of 21 Beacon Street. The suit was settled out of court. Bruce Geller claimed never to have seen the earlier show; Beacon Street's story editor and pilot scripter, Laurence Heath, would later write several episodes of Mission: Impossible.[6]