Three ride again

When surveyors working in Devil's Canyon are attacked and killed, it looks as if a full-scale Indian war is about to erupt. To make things worse, a murderer is at large in nearby Fort Bowie. If they are to stop the coming war and discover the identity of the mystery killer, three oddly matched blood brothers - a rancher, an Apache and a Zulu warrior - will have to forget their differences and ride shoulder to shoulder again.