A nurse spreads the rumor that Dr. Morton is having financial problems. Roy encourages Johnny to represent the station in the Fireman's Olympics. An armored car sideswipes a motorist and Station 51 must break into the van. A man is electrocuted. The station responds to a chemical plant fire. A boy develops cyanide poisoning from eating peach seeds.

The title refers to the code word for "wild animal loose, threatening". The show opens with Johnny and Roy on a pre-dawn call to a small grocery store for a man down, bleeding. Searching the back of the store, Johnny is confronted with a Bengal tiger! A big brush fire threatens a suburban canyon area with lots of domesticated animals and things get dicey all around for the fire department and the Animal Control guys. Rampart becomes a veterinary surgical center for a while.