Loonatics Unleashed S02 E02 A Creep in the Deep

The Loonatics encounter Adolpho, a mutated dolphin who uses psychic abilities to brainwash sea creatures and destroy any human-made object at sea. It's up to the Loonatics to stop Adolpho and his gang of killer dolphins from taking revenge on the "surface-dwellers" at their next target: Acmetropolis.