Charlie Chan investigates the theft of government radar papers (the laboratory is located in the same building as a radio station!) with the help of Number Three Son Tommy and comic sidekick Birmingham Brown.
Written by Marty McKee <mmckee@wkio.com>
At one point at the TV station, Sidney Toler appears to have actually gotten shocked, albeit accidentally, by a cyclometer, ad-libbing " . . . also keep finger out of same" in response.
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