Dashi discovers that the octopod is being threatened by a whirlpool and then Tunip later sees that there are some strange objects in the Garden Pod so he goes and gets Shellington and he later sees that they are sea krait eggs. The Octonauts try to find all the snakes so they won't get sucked into the whirlpool. Then the Octonauts later discover that one of the snakes is missing the Octonauts venture throughout the octopod to find it. The snake ends up in HQ and reversing the ship and the octopod gets sucked into the whirlpool.