The Henry Brothers are opposites: Rob, dark and intense, is shy and a perfectionist, while redheaded Jamie is an easygoing, sociable fellow. They have quarreled and competed with each other since they were small boys. It is therefore not surprising that when Rob becomes a Confederate reenactor, Jamie shows up as a Union drummer boy. Also at the reenactment of the Battle of Antietam is the object of their latest competition: the lovely Sarah Singleton. Dressed in Civil War-era clothes, the three pose for an old style photograph, only to mysteriously travel back in time to the actual Antietam...