An anthropomorphic plane (a B-29) named John is struggling to find work in the age of jet aircraft. As a consequence he really hates jets. Thus he is appalled when the stork delivers to him and his wife Mary (a DC-3) a little baby boy jet. The fact that Junior at birth can fly way faster than his dad makes John hate the boy even more.
One day John, who still can't find work and has "another propeller to feed", reads a trade paper article about an around-the-world race, the winner of which will receive a fat government contract. Determined to prove himself, he enters the race—with little Junior stowed away in his passenger compartment.
- Delivery Stork: A helicopter stork drops little Junior through John and Mary's chimney.
- Fantastic Racism: John doesn't care for jet planes, and all of the jobs rejecting him in favor of jets seems to return the sentiment towards older planes.
- Knitting Pregnancy Announcement: Mary announces her pregnancy by knitting a "bootie" shaped like a tiny little plane. At the end, when the government says they want ten thousand planes like little Junior, a blushing Mary reveals she has knitted a whole row of little plane booties.
- Marilyn Maneuver: From the Statue of Liberty, no less, when John and Junior zoom by and her skirt flies up to show her underwear.
- Monumental Damage: Parodied. As John and Junior rocket around the world at high speed, some famous monuments get the Trope equivalent of Amusing Injuries; the Sphinx is given a crew cut, the Leaning Tower of Pisa is tilted the other way, the Eiffel Tower barely avoids a collision by lifting its "legs", and rushing past the Statue of Liberty gets her skirt blown up showing her legs.
- Sentient Vehicle: Sentient planes. This film is said to have influenced the look of Cars.
- Tertiary Sexual Characteristics: Mary has long eyelashes and lipstick, as well as "feminine" paint.
- Through a Face Full of Fur: Despite having a face made out of metal, Mary still blushes at the prospect of producing ten thousand baby planes.
- "Well Done, Dad!" Guy: After Junior tags along for John's race and then proceeds to save his life, and then win the race for him, John realizes he has nothing to prove to his son.