A soldier survives a bombing in which his three fellow soldiers were killed. When he recovers he discovers he has amnesia, and since his companions' bodies were burned beyond recognition, the army doesn't know which one of the four he is. He goes AWOL and searches out the families of the three dead soldiers, hoping to find out his own identity.

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).

Two rich and wealthy millionaires who have a lot of money bet that reporter Wally Jones can't spend $720,000 in twelve hours.