Best movies like Megalodon: The Frenzy

An oceanic observation station is in desperate trouble after a sudden shark attack wrecked the oxygen supply. The accompanying ship, a coast guard cruiser, and other ships in and around the Bermuda triangle are attacked as well. The US Navy sends a submarine to investigate, but soon they too are under attack.

This third film in the series follows a group of marine biologists attempting to capture a young great white shark that has wandered into Florida's Sea World Park. However, later it is discovered that the shark's 35-foot mother is also a guest at Sea World. What follows is the shark wreaking havoc on the visitors in the park.

When shark conservationist Dr. Misty Calhoun is invited to consult on a top-secret project run by pharmaceutical billionaire Carl Durant, she is shocked to learn that the company is using unpredictable and highly aggressive bull sharks as its test subjects, which soon break loose and cause havoc.

Dr. Emma Collins and her team are spending their third summer on the island of Little Happy studying the effect of climate change on the great white sharks who come to the nearby nursery every year to give birth. Along with the last two inhabitants of this former fishing village, their peaceful life is disrupted when a "scientific" team led by her ex-boyfriend and marine biologist Richard show up looking for three bull sharks who we soon learn aren't just any bull sharks.

A spacecraft is discovered on the floor of the Pacific Ocean, presumed to be at least 300 years old and of alien origin. A crack team of scientists and experts is assembled and taken to the Habitat, a state-of-the-art underwater living environment, to investigate.

The story follows SpongeBob, as he travels to the depths of the ocean and faces off against the ghost of the Flying Dutchman.

When the prehistoric warm-water beast the Crocosaurus crosses paths with that cold-water monster the Mega Shark, all hell breaks loose in the oceans as the world's top scientists explore every option to halt the aquatic frenzy. Swallowing everything in their paths -- including a submarine or two -- Croc and Mega lead an explorer and an oceanographer on a wild chase. Eventually, the desperate men turn to a volcano for aid.

When another Mega Shark returns from the depths of the sea, world militaries go on high alert. Ocean traffic grinds to a standstill as everyone lives in fear of the insatiable beast. Out of options, the US government unleashes the top secret Mecha Shark project -- a mechanical shark built to have the same exact characteristics as Mega. A pair of scientists pilot the mechanical creature as they fight Mega in a pitched battle to save the planet. But when faulty mechanics cause the Mecha to go after humans, the scientists must somehow guide Mega to Mecha in hopes that the two titans will kill each other - or risk untold worldwide destruction.

When two researchers discover a colossal shark's tooth off the Mexican coast their worst fears surface - the most menacing beast to ever rule the waters is still alive and mercilessly feeding on anything that crosses its path. Now they must hunt the fierce killer and destroy it... before there is no one left to stop it

On a future earth where 98% of the surface is underwater, a Warlord who controls an army of sharks meets his match when he captures the daughter of a mysterious shark caller who must learn to marshal a supernatural ability if she is to free her people from the Warlord's dominion.

Just when you thought it was safe to go back to the beach, it appears that our large fishy friends have found a way to chomp on you when you're chilling out on the sand too!

Landing on a small island not far from Havana, Cuba, Lt. Cmdr. Ben Staves joins a Navy scientific project engaged in finding an effective shark repellent to help save the lives of WWII military personnel stranded in shark-infested waters. His zeal for completing the project as fast as possible is explained by his having lost a large percentage of his crew to sharks when his ship was sunk by the Japanese. Against the advice of the others on the project, Staves demands that the new repellent be tested on a live subject surrounded by hungry sharks and will allow no one but himself to be the test subject!

A shark bite spreads a virus across the globe, turning the world upside down. Deep below the ocean, a group of researchers race against time to find a cure. Something has infected the lab technicians and it’s a race against time to reach the surface with an antidote before they are all killed by themselves and the sharks lurking inside the test pool and outside in the ocean.

A group of entitled Beverly Hills oceanography students arrive at a mansion in Malibu, to study the local ocean waters. However, someone… or something, has other, more murderous intent, as the Students begin to disappear, one by one, murdered by some flesh-shredding entity, leaving wounds similar in nature to a shark attack. But how is that possible, when the nearest ocean is a half-mile away?

When a nuclear attack submarine crashes on the floor of the Artic ocean, it's up to a pair of research scientists to save the entire crew before time and oxygen run out.

A military vessel on the search for an unidentified submersible finds themselves face to face with a giant shark, forced to use only what they have on board to defend themselves from the monstrous beast.

The U.S. Navy's special group "Blue Water" builds a half-shark, half-octopus for combat. But the sharktopus escapes and terrorizes the beaches of Puerto Vallarta.

When a group of marine biologists crash land in the Bermuda Triangle, they realize they have stumbled into the lost city of Atlantis. But they quickly discover the city isn't friendly, and its humanoid inhabitants are planning worldwide domination using the piles of weapons and technology that have fallen through the Triangle over the centuries.

In the near future, glacial melting has covered 98% of earth's landmass. Sharks have flourished and now dominate the planet, operating as one massive school led by a mutated alpha shark.

A new breed of aggressive, ravenous sharks cracks the frozen ocean floor of an Arctic research station, devouring all who fall through. As the station sinks into frigid waters, those alive must fashion makeshift weapons or suffer the same fate.

In the final days of World War II, a secret experiment to weaponize sharks is shut down and destroyed by the Third Reich. But now, 60 years later, a small ocean town is plagued by a bloodthirsty, mysterious creature, one built and reanimated using parts of the greatest killers to ever inhabit the sea – the Sharkenstein monster!

When an oil company unwittingly unleashes a prehistoric shark from its icy prison, the Jurassic killer maroons a group of art thieves and a group of college students on an abandoned island

When history’s greatest aquatic predator returns, the armada of modern warships sent to destroy it has no chance at all.

A group of friends run a popular travel vlog that helps fund their adventures. The leader of the group brings along her younger sister for the next scuba diving trip to an isolated cove. But when their plane crashes, the two sisters must use their strength, resourcefulness and immense courage to survive a pack of great white sharks.

When a mad scientist mixes the genes of a killer whale and a wolf, it creates the Whalewolf, and it's up to Sharktopus to stop it.

Lucinda Regis, Director of Development at MALCO Oceanic Research, becomes the target of a dangerous killer after unraveling a sinister plot to inject sharks with human DNA.

A beautiful island is home to thousands of species of aquatic life. Now there is a new species: the 5-Headed Shark is all heads and teeth. Shaped like a demented starfish, this monster terrorizes the open ocean before invading the beaches of Puerto Rico, endangering the once peaceful island paradise.

A militant alien race launches an attack on Earth using gigantic creatures and geological disasters all based on those found on The Asylum's Movie Channel signal which reached their planet.

True story of the sinking of the U.S.S. Indianapolis, its crew's struggle to survive the sharks and exposure, and the captain's scape-goat court-martial.

When he began fusing human and shark DNA, his colleagues laughed at him. Now his creation is taking his revenge, and they aren't laughing anymore.

In this undersea thriller, a United States submarine is seized by terrorists. But a rescue attempt by an elite group of Navy Seals goes wrong when they are captured. Now they must wage a silent war beneath the waves.

A WWII pilot, bombardier, and radioman find themselves adrift on a lifeboat without food or water after being forced to ditch their plane during a scouting mission.

Great white sharks attack a fishing charter, ramming a hole in the ship’s hull. With the shoreline miles away, those aboard are forced to fight for their lives before they are either drowned or eaten alive.

When a marine research vessel explores unusual shark activity in the Gulf of Mexico, they discover the horrifying truth behind an island legend. In this spine-chilling thriller, the pressure increases with each dive. From two thousand feet below the sea, where rare sharks attack their submersible, to night dives within a shark feeding frenzy, to unexpected twists that will leave viewers breathless. With the marine vessel slowly sinking, ghost divers surrounding them, and mounting animosity amongst the crew, each moment is increasingly intense, and every gulp of air may be their last.

A reporter, cameraman, and some petty thieves are stranded in a boat out on the ocean. The only thing that stands between them and their lives is a 50-foot prehistoric megalodon shark. They must all pull together to survive.