After his sister is turned into a werewolf and subsequently killed, Ben White (Reb Brown) decides to help the enigmatic Stefan Crosscoe (Christopher Lee) fight the growing population of lupine monsters, along with the lovely Jenny Templeton (Annie McEnroe). Traveling to Transylvania, Ben, Jenny and Crosscoe attempt to hunt down the powerful werewolf queen, Stirba (Sybil Danning), and must face her furry followers, as well as other supernatural forces.