Karl Ritter has his pilot's licence suspended because he has put off taking government required medical tests. Reluctantly he hires 28 year-old Kate Ashcroft as a temporary pilot. When she proves her skill by avoiding a midair accident, what looks like a fiery relationship becomes a long-standing one. Karl Ritter is the proprietor of a small air transport service in British Columbia. He is grounded when he fails a fitness test and is urged to take on Kate Ashcroft as substitute pilot. Karl has his misgivings about a woman as pilot but he has little choice if his business is to continue. So he agrees to undertake an Unlikely Alliance. Knowing that Karl Ritter has had his licence removed Sandby makes a move to take over Karl's company. Sandby pretends to help but is really protecting himself from another rival taking over. Doctor Crawford suspends Karl Ritter's flying licence for health reasons. Ritter runs a domestic airline service in a small district. When Kate is appointed to be Ritter's pilot, he is reluctant although she proves to be competent in her job.