On May 20-21, 1927, Charles A. Lindbergh flew alone, non-stop from New York to Paris, in a single-engine plane without parachute or radio. With this feat, Lindbergh became perhaps the greatest hero of the decade. Fox Movietone's sound film record of Lindbergh's take-off was the first popular sensation of sound film; it was soon augmented by coverage of his welcome in Washington on June 11th.

For years, a blackmailer has been preying on the weaknesses of others throughout London. When Holmes hears of the utter misery this mystery man is creating, he adopts a campaign to thwart his evil scheming. The campaign astonishes Dr. Watson by its strangeness and finds Holmes falling in love.