Tentacles

Volcanic activity frees giant scorpions from the earth who wreak havoc in the rural countryside and eventually threaten Mexico City.

A genetically-altered fish wreaks havoc on a small fishing town.

A marine biologist, a dolphin trainer, a scientist and a sheriff try to hunt down a massive shark-octopus hybrid monster that is devouring swimmers and fishermen off a south Florida coast.

A team of archaeologists in Mexico encounter an amorphous, blob-like monster that appears to be connected with the collapse of the Mayan civilization.

After a Soviet space station crashes into a New York City subway tunnel, a species of venomous spiders is discovered, and soon they mutate to gigantic proportions and wreak havoc on the city.

Aquatic creatures threaten the existence of a mysterious island.

A giant shark-like creature preys on a Hawaiian tourist community.

A mutated creature is wreaking havoc in a small town in Idaho. A police chief and a government scientist team up to save their rural town from its menace.

After criminal gangs wreak havoc in the streets of Italy, a take-no-guff police commissioner forms a highly trained band of motorcycle riding cops to stop them.

Two members of Greenpeace discover that a local factory sheds radioactive waste into an active volcano, which has created a terrifying creature that wreaks havoc in the area.

Astronauts become monstrous host-inhabiting creatures after space mission. Cave explorers encounter these beings underground. Survivors try escaping and fighting the threat.

Members of an expedition in the East Indies encounter not only the cannibals they were looking for, but also an evil scientist and his zombie army.