Raiders of the Living Dead

In a frightening abandoned prison off the East Coast, a doctor has revived executed convicts as "the Living Dead." A teenager has taken the laser out of a video disc player and made a weapon out of it. When the dead creatures are discovered, he pursues them, aided by his girlfriend and grandfather. A reporter on the trail of the story is helped by the old librarian. On the prison island, the Zombies attack a security guard and tear him apart just as the reporter and the kid with the laser gun arrive to rescue a victim in the prison's caverns...