Ted Scott (John Payne) is a band pianist whose publicity manager decides that, for good press, the band should adopt a foreign refugee. The band goes to Ellis Island to meet the girl and soon discovers that the refugee isn't a 10-year-old child, but a young woman, Karen Benson (Sonja Henie). The surprise comes right before the band is to travel to Sun Valley, Idaho, for a Christmas event. While on the ski slopes Ted soon falls for Karen's inventive schemes to win the heart of her new sponsor, much to the chagrin of his girlfriend, Vivian Dawn (Lynn Bari), a soloist with the band. Vivian promptly quits the band out of jealousy, and Karen stages an elaborate ice show as a substitute.