Barnacle Boy is fed up with playing second banana to Mermaid Man, so he joins the forces of E.V.I.L.—Every Villain Is Lemons—with Man Ray and the Dirty Bubble! To fight these evil forces, Man Sponge, Boy Patrick, Sandy, Squidward, and Mermaid Man join together as the I.J.L.S.A.—the International Justice League of Super Acquaintances! But will they be able to fight off E.V.I.L. and convince Barnacle Boy to come back to the light side? Find out in this hilarious adventure—and may the best superheroes win!