All the passengers on an airplane headed for San Francisco are drugged, and when they wake up, it is discovered that a quarter-million dollars is missing. Charlie Chan–and, of course, his #1 son–must discover the identity of the person who doped the passengers and stole the money.
Vic Armstrong arrives at his Uncle Judge Armstrong’s home just in time to answer the telephone. Unknown to him, his uncle has just been murdered and the culprit is right there in the room with him! Phyllis Powers, on the other end of the line, recognizes Vic’s voice, but just then Vic is knocked unconscious […]