Malloy returns from vacation sporting a mustache bringing forth jokes from the coworkers. The officers spot a light plane on a glide path to crashing. With the help of Air 10 they locate the plane and pull the drunk pilot away before he lights a cigarette as gas leaks from the plane. They discover the pilot's son in the plane injured requiring CPR. A robbery report about three missing stamps appears to have the marks of Reno West who the officers know is back on the street. The officers receive unexpected help at the scene of a jewelry store robbery. A customer is a costuming specialist in the film industry. She provides two sketches of the robbery. One as he looked and one without the fake facial hair leading to comments on men's facial hair directed at Pete. The officers hear a honking horn which is a woman driving a car with a man captured in the passenger window. He tried to steal her purse and she grabbed him and intended to walk him to the nearest police station: four miles away. Another pair of officers arrest the jewelry store robber during a traffic stop and Pete shaves his mustache after trouble trimming it.