Crossfire

A human colony settles on a distant planet, a colony formed by Jake Holman—a man trying to escape a dark past. But as this diverse group of thousands comes to terms with their new lives on a new world, they make a startling discovery: primitive humanoid aliens. There are only a few isolated villages, and the evidence seems to indicate they aren't native to the planet—despite the aliens living in thatched huts and possessing only primitive tools.