A massive iceberg breaks apart, releasing a prehistoric megalodon shark and a colossal octopus. The two creatures, revived by the thawing process, wreak havoc on the California coast and Japanese waters. A team of three oceanographers devise a plan to lure the beasts into a trap using pheromones.
Mega Shark vs. Giant Octopus
Gigantic prehistoric sea monsters wreak havoc along the California coast as they engage in a fierce struggle for dominance of the ocean.