خلاصه داستان : گروهی از انسان ها به سیاره ای دور می روند تا سیگنال SOS را بررسی کنند و متوجه می شوند که تهدید سلاح های دست ساز خطرناک هنوز از بین نرفته است...

A group of humans arrive on Sirius 6-B to investigate an SOS signal sent out from the planet, which has been supposedly deserted since the destruction of the man-made weapons known as "screamers." Once the squad arrives, they find a group of human survivors eking out an existence in an old military outpost.