In the slums of the upper West Side of Manhattan, tensions are high as a gang of Polish-Americans compete against a gang of recently immigrated Puerto Ricans, but this doesn't stop two romantics from each gang falling in love.
As a Civil War veteran spends years searching for a young niece captured by Indians, his motivation becomes increasingly questionable.
A Union Cavalry outfit is sent behind confederate lines in strength to destroy a rail supply center. Along with them is sent a doctor who causes instant antipathy between him and the commander. The secret plan for the mission is overheard by a southern belle who must be taken along to assure her silence.
