The film is notable for featuring John Barrowman, who later found fame in popular shows such as Doctor Who and Torchwood.

Actress Jenny McShane from the first Shark Attack film has a starring role, albeit as a completely different character.

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, Megalodon, is still alive and mercilessly feeding on anything that crosses its path.

The film is also notable because certain clips from it have become popular internet memes due to the unconvincing special effects, size-changing shark, and bizarre dialogue.

A group of divers are installing a power cable at the bottom of the Pacific Ocean, when a shark swims up and kills one of them.

Ben finds the man's severed leg and informs Cat about the attack; she in turn tells him about the Megalodon, additionally saying that it's a miniature version of the beast.

The next day Ben, Cat, Davis and another partner go out to kill the shark, which they find out is heading toward a nearby resort.

Afterwards, Esai arrives on his speedboat, when suddenly, the first shark's enraged mother, a large 60 ft (18 m) adult Megalodon, surfaces and swallows him and his boat whole.

Ruiz steals a woman's life jacket and jumps off the yacht, only to be swallowed whole by the shark, as is one of the rafts.

Tolley attempts to escape on a jet ski, but he ends up driving straight into the Megalodon's wide open jaw.