In order to keep their band together, Ozzie Nelson and his orchestra have been flunking their college final examinations for years. Bob Saunders, the new pianist in the band, agrees to fail as well, forgetting that his father, Roger "R. C." Saunders, owner of the Saunders Restaurant chain, had planned for him to join the family business upon graduation. When R. C. shows up at the college and discovers his son's musical studies, he orders Bob to leave New York and go to Big Horn, Arizona to help run their newest restaurant, the Circle S Ranch. Unknown to his father, Bob takes the entire band to Arizona with him. Arriving in Arizona, Bob, posing as Bob Smith, meets and is immediately attracted to Sally Monroe, proprietor of the rival Arizona Lodge. He is not nearly as impressed with the older clientele of the Circle S and its manager, Cathcart, however. When Cathcart refuses to hire Bob's friends, they successfully conspire to convince the current staff to quit their jobs.