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.

When a contract killer (Steven Seagal) encounters a girl on the run from a mob boss (Vinnie Jones) with powerful political ties, he is torn between protecting the girl, and remaining loyal to the government agency that hired him for the mission.