For five adventurous friends, visiting the legendary murder site of the Redwood House has all the hallmarks of being an exciting and thrilling camping weekend away. A popular site for revellers and party goers, each year on the exact date of the famous local family massacre, people from around the country head out to the site to have fun and scare each other. Events take a bloody turn for the worse when the innocent campers discover the Redwood legend is in fact a horrible bloody reality, which turns the unsuspecting victims into prey for a mysterious axe wielding maniac that has remained dormant for 20 years.

Convinced romance is dead, a heart-broken-ed man turns to his best-friend who plans an unorthodox 'Mantervention'.

Four friends set out by boat for an idyllic vacation on a private, remote island. But unknown to them, a weaponized shark has escaped from a top secret military lab nearby, a shark that was genetically engineered with hate in its blood, and programmed to hunt any human within range. Now, these friends must band together to battle an all new brand of predator who will stop at nothing to remain at the top of the food chain.