This time, the dinosaurs are confined to an island and the seas of a highly-forbidden zone out in the Atlantic, on which terrible mutation experiments were carried out until they fucked up in Final Destination-style and a D-Rex creation got out and ate everyone. (Note: this bit is actually good).
Big pharma (untrustworthy character flag alert) have discovered that it’s possible to effectively cure heart disease using stuff found in dinosaur blood. Slimy corporate vampire Martin Krebs (Rupert Friend) seeks the help of Zora Bennett (Scarlett Johansson), a special ops expert, to lead an illegal mission to the island. Along with struggling palaeontologist nice guy Dr Henry Loomis, who isn’t sure about this whole thing, and a tough but big-hearted crew, they set off to get gore from living dinos, which they can turn into medicine, and turn into a fortune.
This skips by so fast you’ve barely caught anyone’s name. Never mind: dinosaur now! At the same time as they're speeding their way to the island, an adventurous father is sailing across the ocean with his two daughters and his elder child’s boyfriend. Encountering a massive sea beast, they end up stranded, then rescued by Zora and co.
The whole lot of them outrun the leviathans, end up on the island with a totalled boat, and a vague idea that they should get to a helipad for a covert rescue the following night. All while trying to get the samples. Oh, by this point, someone has died, but you didn’t catch his name, and Krebs has shown he’s a baddie by nearly killing one of the girls.