In 1860s Mississippi, the Dabneys, founders of the Dabney plantation in Levington, experience tragedy and turmoil when they refuse to join either side of the American Civil War.
Set at the beginning of the Civil War, Tap Roots is all about a county in Mississippi which chooses to secede from the state rather than enter the conflict. The county is protected from the Confederacy by an abolitionist (Ward Bond) and a Native American gentleman (Boris Karloff). The abolitionist's daughter (Susan Hayward) is courted by a powerful newspaper publisher (Van Heflin) when her fiance (Whitfield Connor), a confederate officer, elopes with the girl's sister (Julie London). The daughter at first resists the publisher's attentions, but turns to him for aid when her ex-fiance plans to capture the seceding county on behalf of the South.