On her deathbed, Laura Peters shocks her son by belatedly revealing that his uncle did not die alongside Paul's father in the bloody confrontation at Gettysburg in July 1863. She urges Paul to ride west in a quest to find this relative who holds a guilty secret from those dreadful Civil War days. With mixed emotions he takes up the challenge, eventually arriving in the Texas town of Ongar Ridge, only to find himself accused of murdering the man he had been seeking.