Notorious cult The Lords of Samhain resurrect long dead serial killer Halloween Jack and all hell breaks loose in the town of Dunwich.

A group of prisoners, led by an armed robber and a gangster, attempt to escape from the infamous Alcatraz Island.

When a daring mission leads a deep sea submarine team into a mysterious opening on the ocean floor, they uncover a lost underwater world and awaken its ancient race of otherworldly beings.