A young action scientist ventures back home following in his father's footsteps to find a dinosaur egg.
A Japanese village is menaced by a plesiosaur from the depths of the sea. Meanwhile, deep in a cave of ice, a prehistoric egg begins to hatch. The plesiosaur and the mystery creature hatching from the egg seem destined to clash.—Anonymous
Severe weather changes in the Mt. Fuju area awaken a plesiosaur in Lake Sai, eating just about anyone who enters the lake. Meanwhile, in an ice cave within Mt. Fuji, a pterodactyl is about to hatch from an egg and throw the region into further chaos. Blood and bad dubbing follow...—BoredGamer