After Darby Harper suffered a near-death experience as a child, she gained the ability to see ghosts. To combat the existential boredom of high school, she runs a side business counseling local spirits in her spare time. When an unexpected occurrence happens between Darby and Capri, the most popular girl at her high school, Darby reluctantly agrees to help her and in the process learns how to fit in with the living world again.

When shark conservationist Dr. Misty Calhoun is invited to consult on a top-secret project run by pharmaceutical billionaire Carl Durant, she is shocked to learn that the company is using unpredictable and highly aggressive bull sharks as its test subjects, which soon break loose and cause havoc.