Magnolia Hawks spends her childhood aboard the Cotton Blossom, growing up amid simmering racial tension and struggling to survive life on the Mississippi. When she falls in love with the dashing Gaylord Ravenal and moves with him to Chicago, the joy of giving birth to their beautiful daughter, Kim, is offset by Gaylord's gambling addiction and distrustful ways. Only when Kim sets off on her own to pursue success on the New York stage does Magnolia return to the Cotton Blossom, reflecting on her own life and all who once called the show boat their home.