In Beirut, Lebanon, the white-haired detective Lieutenant Frank Trouble (Leslie Nielsen) who came down from the sky beat up a group of Arab extremists who were plotting to undermine the stability and unity of the United States, but Frank was not rewarded when he returned to Los Angeles because a new case was waiting for him: his colleague Nordberg was seriously injured while investigating a drug trafficking case. At that time, Queen Elizabeth visited Los Angeles. Frank, who was ordered to protect the Queen, could only squeeze out time to investigate the attack on Nordberg. When visiting the head of the Queen's Reception Committee, businessman and congressman Vincent (Ricardo Montalban), Frank keenly smelled his connection with the drug trafficking case. Vincent hinted that the beautiful assistant Jane Spencer (Priscilla Presley) should approach Frank in order to obtain first-hand information from the police. Vincent was so guilty because he was commissioned to assassinate the Queen of England, and Frank, who seemed unreliable, was Vincent's number one enemy at this time...