Charlie Chan at the Olympics Twentieth Century-Fox Film Corporation (1937) Starring Warner Oland Directed by H. Bruce Humberstone During flight tests over Honolulu an experimental airplane is hijacked and its pilot murdered. When the missing plane is chanced upon by Charlie Chan and son Charlie, Jr., it is discovered that he new guidance device, designed to allow military planes to fly unmanned, is missing. The detective traces the strategically important invention to the summer Olympic games in Berlin, where spies, enemy agents, and other criminals are trying to obtain it, intent on selling it to another government. Chan's son, Lee, a member of the U.S. Olympic swim team, is on hand to help his father recover the device and solve the mystery.