A screenwriter spends a day taping Roy and Johnny's work which includes a motorcycle accident, a chemical worker suffering from exposure to gasses, and an explosion and fire at a toy factory. Roy and Johnny also assist in the delivery of a deaf couple’s baby.

Johnny and Chet try to fix a boy's motorbike. A woman's husband is trapped under their house where an inactive oil well has erupted. Johnny and Roy must remove a ring from a man's finger before the wife's jealous husband returns. A child is trapped in a pipe.

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 men at the station find out that Roy picks winning racehorses and pester him to choose one for them to bet on. A lion bites a woman at the zoo, a go-go dancer collapses, a man's ego punctured by cactus, and the squad rescues a policeman shot during an exchange of gunfire with a sniper.

Roy and Johnny respond to a call where both a policeman and a suspect have been shot. Roy and Joanne go on a TV quiz show. A woman brings in her abused son for treatment. A pickup carrying kerosene collides with a station wagon and starts a brushfire. A boy suffers an allergic reaction to a bee sting.

A surprise birthday party is planned for Dixie. A woman is thrown from a motorcycle into a cactus patch. A man is trapped in his new sauna. Dixie breaks hear ankle and suffers a concussion from kicking a shopping cart. Two men are injured attempting to mount a sign on a building. An old woman refuses to leave her apartment during a gas leak and the building explodes with Johnny inside.

The bachelor members of Station 51 are in competition for first date with the beautiful new nurse at Rampart. The station rescues a man frozen to the floor of an ice house and a man from a theatre fire. Roy and Johnny help a man whose hands are glued to a model boat.

Tired of Chet's antics, the guys at the station get their revenge by playing practical jokes of their own. A gun discharges by accident and injures a pregnant woman, a construction worker caught under a boat refuses an IV, and a man in a motorcycle accident communicates through his thumb.

Johnny and Roy consider trading cars. Dixie takes on hospital management after budget cuts affect her nursing staff. A frat pledge chokes during initiation. The station rescues a woman trapped in her car on the edge of an open drawbridge, and a famous basketball player is involved in a fender bender. Dr. Early has the hiccups.

John thinks he can be a photographer and pesters Roy for candid shots. A teenager suffers smoke inhalation at an elementary school structure fire. A fireman thinks he's having a heart attack, but it's really just his chili. A woman is bitten by a scorpion. Dixie has 'one of those days' as she and Dr. Brackett deliver a baby in a restaurant on their lunch hour. The driver of a truck full of dynamite is pinned behind the wheel of his vehicle as it catches fire.

The station (sans Roy) enters the fireman's barber shop quartet contest. A man keeps having to be rescued while trying various ways to exercise. A woman overdoses on sleeping pills.

While responding to a call, Roy and John witness a pedestrian being struck by a car. A woman is badly burnt in a fire. John thinks about settling down. A belly dancer overdoses on diet pills. A child bites a dog and the dog bites back. At a structure fire, Roy and John must jump to safety.

Roy and John finally restore their old fire engine to ride in the California Fire Fighters Parade. A man with heart problems insists on driving, and causes an accident for which the other driver blames herself. Dr. Early treats a patient who has a seizure in the waiting room. A man on a date passes out and has difficulty breathing; the doctors search for the cause. A child's medical condition causes an argument between his divorced parents. Driving to the parade in the old engine, the paramedics respond to an actual emergency.

A man is trapped on a film set with a bear. When Roy and John rescue him, they are invited to a 'thing' that the man is giving later that week. John talks Roy into getting overdressed for the event. Dr. Brackett treats a man suffering from trichinosis. A bomb blast injures two men. The paramedics resuscitate a musician at the party.

A high school classmate of John's is assigned as Squad 51's new paramedic trainee. The firemen rescue a man trapped in his kitchen after a hydrogen sulfide explosion. The paramedics help treat accident victims at the hospital and tend to child at an amusement park. When an intoxicated man turns out to be a snakebite victim, Roy is hit in the eyes with cobra venom. Back at the amusement park, a heart attack victim is trapped high in the air.

A temporary captain from 'the old school' doesn't feel Gage and DeSoto should be practicing 'medicine', and has no problem in expressing his opinion. An elderly man sets his chair on fire. Dr. Early keeps coming up with oranges when all he wants is an apple. The paramedics struggle to save a heart attack victim. A boy with asthma gets trapped in a storm drain. Dr. Brackett uses an old-fashioned sedative on a biker. Chemicals complicate a structure fire.

Johnny is assigned to conduct a school tour of Rampart hospital; the youngsters are highly inquisitive. A veteran mentally reliving a battle is subdued by the paramedics; he turns out to have a brain tumor. A woman gets stuck in a dog door. A famous novelist attempts suicide. A cargo plane crashes in a residential area, hitting a school bus.

The paramedics rescue a magician trapped in his trunk. Dr. Brackett's father is treated at the hospital for phlebitis. A fireplace explodes and falls on top of the homeowner. An auto accident sends a power transformer flying into a man's bedroom. Roy and John are puzzled by a gift from the magician. A fuel truck collides with a car and a gas main, trapping a woman and starting a fire.

John agrees that the losing baseball team at the fireman's picnic will pay for the picnic. Chet becomes Station 51's only hope when their pitcher breaks his arm. A drunk driver becomes violent after crashing his car; another man is trapped in a car with a tiger. A man with a back problem must be extricated from his water bed. A structure fire is complicated by moonshine.

An elderly man is trapped in his burning house. Chet becomes obsessed with ridding the station of an uninvited guest. Paramedics and doctors treat a man who suffers repeated cardiac arrests. Dixie comforts the husband of an elderly patient. Roy and John help break up a fight. Several crises occur at an apartment house hit by a jet fighter.

A young OD victim is brought into the ER. A man fakes back pain to get a free ride to the hospital. John gets peeved at all the frivolous calls the squad goes on while real emergency victims need help. A man is shocked after kicking in his TV screen. The ambulance carrying the paramedics and a heart attack victim is involved in a traffic accident.

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.