A viral pandemic. Cities in lockdown. Humankind hopelessly divided into warring factions. Guns in the streets and every man for himself. In the third episode of Green Class, the stakes have gotten even higher. Still trapped in the post-apocalyptic hell-swamp of Louisiana, our band of young Canadians finds itself neck-deep in something far murkier and beyond mere science when the teens stumble across the true source of the rampant plant zombies besetting them: a book called the Necronomicon. With secret experiments to open an interdimensional portal to the elder gods, the end times take on a whole new dimension, calling to mind the uncanny worlds of Lovecraft.