The family prepares to celebrate the return of the Bunch Beetles, who arrive back on Pangaea every May 14th to eat the rapidly growing Cider Poppies. This year, however, they fail to arrive and it soon emerges that WESAYSO built a wax fruit factory on top of their mating ground and killed the species. Without the Bunch Beetles to eat them, the Cider Poppies quickly begin to overrun the continent. More concerned with bad publicity than any threat to the ecosystem, B.P. Richfield chooses Earl to take care of the problem. Earl, eager to quickly get rid of the poppies instead of looking for a long-term solution, chooses to spray everywhere with defoliant. Although this succeeds in getting rid of the Cider Poppies, it also manages to destroy all plant life on the entire planet. Deciding that rain is needed to bring back the plants, Richfield decides to drop bombs in every volcano, reasoning that the clouds they produce will bring the rain. Instead the volcanoes produce thick black clouds, blocking out the sun and plunging the planet into an ice age. Earl finally realizes what a mistake he made by tampering with nature and taking it for granted, however it is too late. He apologizes to his family for ending the world, but promises that dinosaurs won't just disappear. The Sinclairs agree that they'll remain a family no matter what happens, as the house begins to be buried by snow.