The coastal town of Bristol Cove is known for its legend of once being home to mermaids. When the arrival of a mysterious girl proves this folklore all too true, the battle between man and sea takes a very vicious turn as these predatory beings return to reclaim their right to the ocean.

When Zoe's sister, Rachel, ends up dead from an apparent suicide, Zoe takes it upon herself to find out the truth. Through Rachel's diary Zoe is able to follow a trail to a world of nightclubs and the secrets they hold.

Three siblings who break away from a lackluster temple tour in a jungle finds themselves immersed in a real-life mission comprised of obstacles that they must complete in order to escape alive.