Half breed Keoma contributes his border after service in the Civil War and finds it under the control of Caldwell, an raider, and his gang of thugs. To make things worse, Keoma's three dimensional half-brothers and Caldwell have united forces, also make it obvious his return is an undesirable one. Depending on break Caldwell along with his brothers' grasp on town, Keoma partners with his dad's former ranch hand into exact revenge.