Part 4/7:
As the narrative progresses, it becomes apparent that the water is teeming with danger. Julie and the scientists discover an underground lake connected to Lake Victoria, which houses monstrous piranhas. A diving team sent to explore the crevice meets a bloody end as they are devoured in alarming sequences. The stakes rise dramatically when the townspeople and tourists are blissfully ignorant of the lurking threat.
The chaotic spring break festivities turn deadly when the piranhas launch their attack. The summer crowds descend into panic as blood spills into the water, attracting the vicious fish. Various characters, including Jake and his siblings, find themselves embroiled in a fight for survival as the beaches become lethal.