Larry is determined to rebuild his relationship with his daughter as they bond during a scuba diving in beautiful tropical waters while exploring a famous shipwreck. But soon after their descent, their master diver has an accident leaving them alone and unprotected inside the labyrinth of the wreck. As tensions rise and oxygen dwindles, the pair must use their newfound bond to escape the wreck and the relentless barrage of bloodthirsty great white sharks.