In San Francisco’s Chinatown, Charlie helps two different people search for their missing relatives and uncovers a murder for insurance scheme.

A treasury agent on the trail of counterfeit money confides to fellow ocean liner passenger, Charlie Chan, that there have been two attempts on his life.

During WWI pretty German master spy Helene von Lorbeer is sent undercover to London to live with the family of a high-placed British official where she is to rendezvous with…

T-Man Brass Bancroft goes undercover in a prison which has a secret counterfeit operation set up in the print shop.