Owen reestablishes his alpha bond with the three surviving raptors before the Indominus reappears. Two raptors are killed attacking it. Claire orders the park's veteran T. rex to be released from its paddock and lures it into a vicious battle with the Indominus. The T. rex is overpowered until the lone surviving raptor attacks. The raptor and T. rex force the overwhelmed Indominus towards the lagoon, where it is dragged underwater by the park's resident Mosasaurus.
Survivors are evacuated to the mainland, and the island is abandoned to the dinosaurs. Zach and Gray are reunited with their parents, while Owen and Claire decide to stay together.