Texas Ranger, Caitlin Strong fights a new enemy, an ISIS group who is interested in a devastating weapon on Texas soil. The oil drilling on an Indian reservation is steeped in mystery and controversy and a secret from the past may trigger an Armageddon from the canyonlands. The terrorist organization ISIS is after a deadly toxin that could be the ultimate weapon of mass destruction. There is a race for the toxin because it also holds the potential to eradicate cancer. At the Indian reservation where a vengeful tycoon is mining the toxin, he is disguising his effort as an oil-drilling operation. Now Texas Ranger Caitlin Strong must face off against a host of adversaries, including a mythic monster culled from Native American folklore that the tribe believes has risen to protect its land.