This is the story of a family of fire fighters. Joe is the patriarch; he is a former fire fighter, who is currently an arson investigator. His son, Ted is fireman, who's laid back. His other son, Chris is helicopter pilot who flies the victims to the hospital if necessary. Presently, they are investigating a series of fires that appear to be insurance scam, because the property's owner is in debt and his property is heavily mortgaged. They have one of the arsonists, however, he was so disfigured by the fire that they can't identify him. So Joe is hoping that Ted, who saved him can convince him to help them. And also there's a situation at the firehouse, Haley Green is the first female fire fighter and some of the guys are not pleased with it.

The battalion intends to give a boy a citation for his help with fires. But those plans are on hold when it's discovered the lad is the one who has been setting the blazes.

Joe gives away bride Constance to firefighter Charlie Bowers. The newlyweds' world is shattered when Charlie is fatally injured. Ted, the best man, takes Charlie's death very badly and freezes during a subsequent incident.

An arsonist stalks a witness, a woman who happens to be blind.

Danny's schoolmate (Dana Kimmell) is having disturbingly accurate visions of fires—and now Danny's figuring prominently in the visions.

A filmmaker (Peter Haskell) ignores warnings about a dangerous fire stunt; guests Ray Walston, John Ratzenberger.

Ted poses as a substitute teacher to find out who is peddling dangerous fireworks to Danny and the other students.

Danny suspects a rival gang, the King Cobras, is trying to frame his former friends, the Hawks, for a series of arsons.

A feud between two men threatens the impending marriage of their children.

Despite a gasoline spill and fire, a girl rushes home to be with her pregnant mare; guest Markie Post.

An angry, motherless boy (Billy Jacoby) blames a landlord for a fire in his aunt and uncle's home.

The Rorcheks are disturbed when Danny reacts to a surprise birthday party by running from the room in tears.

The Rorcheks are suspicious when a visit from a former firefighter coincides with a series of vandalism incidents.

Substandard video games overheat and cause fires; Ted begins to crack under work stress; guests Chuck McCann, Sam Melville.

Danny fears losing his foster family when the firefighters undertake perilous rescue attempts during heavy rains.

The Rorcheks resent the arrogance of a famous gas-well firefighter (William Smith) whom Danny regards as a hero.

A pyromaniac arsonist is committing a series of firebombings with the crew of LAFD Station 1, especially Firefighter Haley Green, singled out in threatening letters.

As Danny's friend undergoes emergency surgery, fire in the hospital threatens to spread a deadly virus; guest Max Wright.

A mine fire threatens the lives of Danny, Joe and Haley, while an adoption agent evaluates the Rorcheks.