Finn, Sam and Andrew, three children with radically different backgrounds, join the Pirate Academy, the school through which the most legendary figures in the history of piracy have passed! But at the Academy, competition is fierce between the classes... And our three heroes find themselves in the Plankton class of Captain Labarrée, a buccaneer in early retirement with particular and very... crazy methods! The Planktons have as many talents as the other students, but they go further to prove their worth and become the greatest pirate students in the entire history of the school!