在无边海域，暗礁狂鲨悄然来袭，捕食者与猎物的生死较量。御龙在天铁血霸刀技能加点

　　After her sister's murder, Nic, her younger sister and two friends seek solace through a Pacific island kayaking adventure. Hours into the trip the women are stalked by a shark and must band together, face their fears and save each other.