Sing, You Sinners

Joe (Crosby), David (MacMurray) and Mike (O'Conner) are three brothers who disagree about everything and could not be more different from each other. As luck would have it, they make beautiful music when they sing together. When the eldest brother, Joe, who is also a gambler, moves to California, the family follows suit. Upon arrival they are horrified to find that Joe has put all his money toward a racehorse named Uncle Gus. The family rallies to bring the band back together to get Joe's money.