Yoohoo and his friends go to Big Boss's castle to look for Pammee. On their way there, they pass the Death Forest and are affected by the scent of a mushroom that makes the mind go fuzzy. Not having control, they fall into a hole in the ground and are chased by a monster spider. They somehow overcome all the obstacles and find their way to the castle to save Pammee!

A solar eclipse is about to occur in the village. As the sun disappears it becomes dark in Greenit. The solar eclipse also increases Yoohoo and his friends' powers! Pammee is stressed because she hears everything louder than normal, and Chewoo is in agony because she can smell anything and everything!