Land development disturbs the final resting place of a headless, sword-wielding cyclist who hunts down and beheads the rival gang bikers who killed him.
Kolchak (Darren McGavin) discovers a very attractive woman (Cathy Lee Crosby), who maintains her youth and beauty by sacrificing young men and women to ancient Greek gods.
Kolchak tries to find some kind of reptilian monster that has been killing construction workers after they open a new tunnel, nearly 2 miles underground.