Chinatown is in a flap over the theft of a priceless piece of art. Jesse is approached by old flame Lilli who believes that her present boyfriend, Joe Ching, may be able to provide some clues. Their feelings for each other are rekindled, and Lilli has to decide between her love for Jesse and her loyalty to Joe.
Jesse suspects a police officer escorting a robbery suspect from L.A. to N.Y. has murder on his mind.
When a foreign dignitary, Prince Stefan, arrives on an official visit, Jesse Mach and the Street Hawk crew are assigned to provide added protection though
the prince is already guarded by a security apparatus managed by a man named Frank Menlo.
This proves to be a good move as an attempt to kill Prince Stefan is made the moment he arrives at the airport. However, the attempt is foiled. The assassin is dressed as a nurse, and police believe him to be an international assassin.