In this eagerly-awaited sequel, we meet up with Ducobu, the most inventive student at the Saint Potache school, with a new idea that defies all expectations: a sabbatical year dedicated to ecology. Far from his usual escapades to avoid homework, he embarks on a mission to save the planet. But his plan won't go off without a hitch, as Monsieur Latouche, his eternal adversary, is determined to thwart his plans. "The spirit of this new opus, which promises laughter and reflection on topical issues, could be summed up as "Cheating and ecology, it's no piece of cake!