Already taking a gamble settling in the uncharted west, the peaceful settlers of a town destined for railroad greatness suddenly find themselves being ruthlessly gunned down. With no law and order to be found, justice falls onto the shoulders of an elderly rancher and an accomplished, but retired, gunslinger.

Jack Caine (Dolph Lundgren) is a Houston vice cop who's forgotten the rule book. His self-appointed mission is to stop the drugs trade and the number one supplier Victor Manning. Whilst involved in an undercover operation to entrap Victor Manning, his partner gets killed, and a sinister newcomer enters the scene... Along with F.B.I. agent Lawrence Smith, the two investigate a spate of mysterious deaths; normal non-junkies dying of massive heroin overdoses and bearing the same horrific puncture marks on the forehead. This, coupled with Caine's own evidence, indicates an alien force is present on the streets of Houston, killing and gathering stocks of a rare drug found only in the brain... Caine is used to fighting the toughest of criminals, but up to now they've all been human...

A decorated firefighter has his wife and son leave him because of his violent tendencies, including playing a game of Russian Roulette with his wife. Only trouble is he believes that the loving neighbor couple and their two children are to blame for them leaving by filling his wife's head with nonsense. He then sets out to discipline the family for their failings. But when the couple reports him to the police, the police will not believe the couple because of the fireman's status in the community. Things escalate until he kills a repairman, then the police and finally launches a totally terroristic attack on the family including again playing Russian Roulette with them.