The firemen enter a contest to invent new firefighting tools. The paramedics handle victims of possible radiation poisoning. A comatose man is suffering from a mysterious ailment. A woman’s overweight son is wedged in her living room ceiling. The firemen respond to a leak at a chemical plant.

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.

It's bad news for the station as both Roy and Chet are injured - Chet by an explosion and Roy in a warehouse fire. The paramedics treat a boy who fell out of a tree, and Rampart General treats a tree surgeon. Johnny catches some overtime with Squad 8, where the lack of equipment proves fatal to a heart attack victim.

The crew finds a droopy-eyed hound dog in the station; at an industrial fire, Gage and DeSoto check a secret room for victims; a "therapeutic" argument between a husband and wife keeps getting out of hand; while attempting to rescue two injured workers, Johnny is trapped in a tunnel cave-in.