Whitney and Rainsford are on a boat on their why to Rio. On their way to Rio they pass an island and Rainsford falls off the boat. Whitney doesn't realize and the boat is long gone, so he swims to the island.
Rainsford makes it to the island and he trying to figure out what animal is making noises. He also heard pistol shots and where there are shit there is people. Rainsford then goes to find the people.
Rainsford meets Ivan and Gen. Zaroff. He learns that Zaroff likes to hunt. He then finds out he likes to Hunt humans and Rainsford will be hunted by Zaroff.
Rainsford jumps in the ocean to hide from Zaroff after failing to defeat him the first time. Zaroff gives Rainsford a break for a few days.
Rainsford swims back to land and continues to fight. He hides in the tree and tries to kill Zaroff he ends up killing Ivan instead.
Rainsford finds his way back and Zaroff tells him he is now the prey and Rainsford is the hunter. Rainsford pushes Zaroff out a window defeating him like no one else.