A group of beach goers discover the mystery of a Loch Ness Monster in the ocean. Further investigation shows that this is only one of a whole planet full of them, and they aren't too happy with Earth.

In 1967, group of surfers discovers a man-eating creature from outer space lurking in the waters off a favorite surfing spot. They later learn an entire planet filled with these creatures is planning a full scale invasion of the planet Earth.—Anonymous