Sherlock Holmes - Season 1 - Episode 21 - The Case of the Reluctant Carpenter

Sherlock Holmes races against time in order to find the location of a bomb that was planted somewhere in London by an extortionist.
Directors: Steve Previn, Sheldon Reynolds, Jack Gage
Writers: Harold Jack Bloom, Arthur Conan Doyle, Charles Early
Starring: Ronald Howard, Howard Marion-Crawford, Archie Duncan, Richard Larke