Ari Kirschenbaum writes and directs this low-budget US horror. On Halloween night in a small American town, the local police force find themselves terrorised by supernatural forces after Deputy Hancock (Charlene Amoia) brings in a strange, mute suspect. After placing them in a holding cell, each of Hancock's colleagues sees the prisoner as a different person from their past and is haunted by nightmarish visions. Things only get worse for the officers as armed zombies start walking the streets outside and the force must find a way to stop them.

It is 922 AD. Ahmed Ibn Fahdlan (Antonio Banderas) is an Arab ambassador travelling through Northern Europe with his mentor Melchisidek (Omar Sharif). They chance upon a band of Vikings, who are licking their wounds after an attack by mysterious creatures. A fortune teller prophecies that unless the Vikings can find a 13th warrior then they are doomed to destruction. This warrior must be an outsider, and soon Ahmed is enlisted to join the clan, but further attacks rapidly place the band under mortal threat.