That's it! Battle for control and security over the ocean underwater kingdom TerraPisciss arrived! All the forces of men and mer-people under the command of Ben Tennyson, but the forces Ssserpent range from frosty Arctic Sea in the middle of the Pacific Ocean ... who will be the winner? Check out the stunning conclusion!

Ben Tennyson cruise vacation takes a turn for the weird when he discovers that his mysterious new friend Lorelai is actually a mermaid princess and protect the head of an alien hybrid underwater kingdom called TerraPisciss. Mer-people are the heroes of the sea and never needed help before - so why would they suddenly that Ben 10 and plumbers in

Ben Tennyson cruise vacation takes a turn for the weird when he discovers that his mysterious new friend Lorelai is actually a mermaid princess and protect the head of an alien hybrid underwater kingdom called TerraPisciss. Mer-people are the heroes of the sea and never needed help before - so why would they suddenly that Ben 10 and plumbers in