All other considerations are secondary

For centuries the story has been the same. Villages laid waste; men tortured, mutilated, and left to die; women and children hauled away to an unknown fate. Victims of something that came by night, bringing fire, madness, and death. The few that survived were the ones that fled quickly and did not look back. They brought with them a whispered name. Tchay-Tchay.
In 1970 a CIA black ops team flies into into a remote region of Laos. Its mission – to make contact with the Tchay-Tchay. The Agency believes the tribe could be allies in the war against Communism.
But the Tchay-Tchay don’t kill guerillas because they’re communist. They kill them because they’re not Tchay-Tchay. And – as the Americans are about to discover – because the Tchay-Tchay enjoy killing.