A man with a low IQ gets electrocuted by a downed powerline and dies. He eventually is revived back to life. But after returning from the dead, he is a different person who seems to know everything and is incredibly bright. He refuses to talk about what happened to him when he was clinically dead.
A group of men use huge steam machines to thaw out the glaciers in Greenland hoping to uncover specimens. They thaw out a viking ship, a still living dragon (referred to as a Pterodactyl), and a group of alien giants engaged in war with each other which resumes after being thawed out.