It’s been thirteen years since the robotic killing machines known as Screamers destroyed the human population of Sirius 6B. But now a distress signal brings a team of rescuers to the supposedly abandoned planet. <br/> <br/>Can it be a long-lost colony of human survivors? Or have the Screamers evolved into something even more sinister... a half-man/half-machine hybrid that needs to escape Sirius 6B to finish its mission: the complete annihilation of the human race?