Researchers on the undersea lab Aquatica have genetically altered the brains of captive sharks to develop a cure for Alzheimer's disease. But there's an unexpected side effect: the critters got smarter... and meaner. After a big storm damages their remote research facility, they must fight for their lives as the sharks hunt them down, one by one. All-star cast includes Oscar and Golden Globe-nominee Samuel L. Jackson, Saffron Burrows, LL Cool J, Thomas Jane and Michael Rapaport. Directed by Renny Harlin. SUBSCRIBE to Warner Bros. Entertainment: http://bit.ly/32v18jf Connect with Warner Bros. Entertainment Online: Follow Warner Bros. Entertainment INSTAGRAM: https://www.instagram.com/warnerbrosentertainment/ Like Warner Bros. Entertainment on FACEBOOK: https://www.facebook.com/warnerbrosent/ Follow Warner Bros. Entertainment TWITTER: https://twitter.com/WBHomeEnt About Warner Bros. Entertainment: At Warner Bros. Entertainment, we believe in the power of story. From classics to contemporary masterpieces, explore and watch a library full of extraordinary, stirring, and provocative entertainment that goes beyond the big screen. Subscribe to discover new favorites from the studio that brought you Friends, JOKER, the Conjuring Universe, and The Wizarding World of Harry Potter™. Deep Blue Sea | Shark Tank | Warner Bros. Entertainment https://youtu.be/6o2F6H3H8JU Warner Bros. Entertainment https://www.youtube.com/user/WarnerBrosOnline