Joe Mannix is called to the office of an air freight company and asked to investigate some cargo thefts, unaware that this is a ruse to allow the operators of the company to substitute a double in his place. When Mannix then tries to leave on a confidential trip to London, he is kidnapped by the men from the air freight company and taken to a remote old west ghost town - while the impostor takes his place on the mission to London.
—aldanoli