Four years after the incident at the Mariana Trench that unleashed a pregnant Megaladon, Jonas Taylor now houses her one surviving offspring at the Tanaka Institute.

Deep in debt, Taylor has turned to an eccentric billionaire to help keep the institute afloat, but it doesn't come without a price. Drawn into a web of deceit and lies, plagued by nightmares of his own death, Taylor must once again face frightening monsters of unimaginable power.

Only this time, it's not just the sharks he has to watch out for.