A widower and aeronautical engineer named Steven Douglas raises three sons with the help of his father-in-law, and later the boys' great-uncle. An adopted son, a stepdaughter, wives, and another generation of sons join the loving family in later seasons.
Chip-Off the Old Block
The Little Ragpicker
Bub in the Ointment
Countdown
Brotherly Love
Adjust or Bust
Lady Engineer
Chip's Harvest
Raft on the River
Lonesome George
Spring Will Be a Little Late This Year
My Three Strikers
The Elopement
Mike's Brother
Domestic Trouble
Bub Leaves Home
Mike in a Rush
The Bully
Organization Woman
Other People's Houses
The Delinquent
Man In a Trench Coat
Deadline
The Lostling
Off Key
Small Adventure
Soap Box Derby
Unite or Sink
The Wiley Method
The National Pastime
The Croaker
The Musician
The Horseless Saddle
Trial by Separation
The Sunday Drive
Fire Watch
