Based on the gripping sci-fi adventure. Present Day. Survivors of an American military vessel sunk by a Russian sub manage to capture the Russian sub after it surfaces. But now out of fuel, the sub makes its way to a tropical island. As those in the sub explore the island, they realize it is full of previously thought to be extinct creatures like dinosaurs, forcing them to survive the creatures and work together along with those who already live on the island to figure out a way off.