The story concentrated on a group of test pilots, busily experimenting with a revolutionary all-plastic airplane. Ace flyboy Brad Farrell (Richard Arlen) is determined to prove the practicality of the new aircraft, designed by Professor Blake (Thomas Ross), father of Brad's sweetheart Carol (Jean Parker). Back on solid ground, Brad must vie for Carol's attentions with his own brother, engineer Doug Farrell (Don Castle).

Based on the comic strip by Gene Byrnes, the "Reg'lar Fellers", and one girl-feller, tinker with building a land/water machine, form a kid-band and go on the radio, celebrate a birthday, get involved with gangsters...and reunite a wealthy recluse with her baby granddaughter and estranged daughter-in-law.