Deep Blue Sea 3 (DVD)

On the tiny island of Little Happy, Dr Emma Collins and her team monitor a flourishing marine nursery where great white shakes come to breed. Their idyllic existence is interrupted when Emma's ex-boyfriend arrives in search of three murderous bull sharks. But these are not ordinary sharks: their mother, Bella, was genetically modified to be highly intelligent...and dangerous. As their body count rises, it is clear that Bella's offspring inherited her killer genes and if they manage to spawn, life as we know it may end.