Four smart and beautiful policewomen were sent to Criso's police station for an internship, which immediately caused confusion and misunderstanding. the original bare soldiers suddenly became very enthusiastic, and they were duty-bound to teach the four policewomen how to be on duty and direct traffic, but they turned out to be full of jokes. On the contrary, the policewomen are smart and capable and perform well. A foreign espionage organization attempted to steal state secrets through a new computer in the police station, but the secret codes necessary to obtain information were engraved on the watches of the four policewomen. As a result, four girls mysteriously disappeared one after another, and the director and Criso's wife were involved. Seeing that the director was coming to inspect the internship of the four girls, the director decided to send Crixus to pretend to be a policewoman and bring the last watch to attract members of the spy organization. At the same time, the girls were trying their best to get out, and the members of the espionage organization were finally captured.