When an inventor is killed, Chan (Sidney Toler) takes the case. Mantan Moreland, Benson Fong. Jones: Arthur Loft. Inez: Gwen Kenyon. Directed by Phil Rosen.

The Oriental sleuth (Warner Oland) meets murder and foul play under the big top when he takes his family to see the show. Lee: Keye Luke. Tiny: Olive Brasno. Tim: George Brasno. Gaines: Francis Ford.

Charlie is hired to deliver a pearl necklace to a millionaire at his ranch. When murder intervenes he disguises himself as a Chinese servant and begins sleuthing.

Charlie impersonates an employee of the U.S. government to foil an espionage plot which would destroy part of the Panama Canal, trapping a Navy fleet on its way to the Pacific after maneuvers in ...