Higgins Hole is home to a peaceful community of quirky sea creatures—Lutus, the Hole's sage lobster leader; Apollo, the sea turtle diplomat; General Integritus, the noble military commander; and Petronius, a vainglorious yet good-hearted seahorse who narrates this witty adventure that celebrates self-determination, loyalty, leadership, and identity. When a vicious pack of great white sharks, led by the ferocious Tacitus, invades Higgins Hole, it is up to the Hole's inhabitants to rid their waters of the aggressive intruders, with some help from the legendary Flying Dolphin Squadron and its charismatic leader, Megamaximus Sharkbonker.