Peggy is kidnapped under orders of a crime boss to force Mannix to find an undercover man in his organization, whom he intends to have killed.
On a rainy day in Los Angeles, Joe Mannix' secretary Peggy is kidnapped by two men on the instructions of crime boss Lawrence Powers. Powers has the two men hold Peggy to force Mannix to investigate which of his three closest associates is acting as a stool pigeon. Mannix only has 72 hours to learn this information -- or Peggy's life will be forfeited.—aldanoli