When Sadko sings and plays the dulcimer, a traditional string instrument, everyone - from the villagers to the Tzar of the Sea - is moved to dance. With patience and honesty, Sadko becomes a successful businessman and the most eligible bachelor in the country. Despite his success, Sadko remains faithful only to the "little river" by which he plays his dulcimer. When he encounters a maiden as beautiful as the river's shimmering waters, will he learn what it means to truly love?