Charlie Chan is an agent of the US government working in Washington DC and he is assigned to investigate the murder of the inventor of a highly advanced torpedo. Aiding Chan is his overeager but dull-witted son Tommy and his daughter Iris.
Charlie Chan
Birmingham Brown
Inspector Jones
Inez Arranto
Mrs. Hargue
Paul Arranto
Iris Chan
Tommie Chan
Peter Laska
David Blake
Luis Philipe Vega
Lewis
Mrs. Winters
