Cowboy Mike Jordan kills two men in self defense and on returning to his herd finds his father and brother killed. He goes to the local sheriff to clear matters up but must settle accounts on his own.

A scientist invents a filter that can increase the power of a laser beam, turning it into a death ray! A dangerous crime organization wants the device and will stop at nothing to get it, while murder and violence follow Joe and Tom to Singapore as they try to foil the evil plans.