 West and Gordon receive orders to protect Rosa Montebello, a famous Italian opera diva and niece of the ambassador from Italy. Artemus gets nothing but grief from the difficult diva. When the curtain goes down in the middle of the opera performance, West suspects foul play and jumps to the stage just in time to stop the diva s kidnapping. With subsequent attempts on her life, Montebello soon realizes just how much she needs the protection from the agents.