Chewoo opens a party with her friends to celebrate her birthday. On this day she makes a birthday wish but it is an unrealistic one. However, the next morning Chewoo wakes up to find that her wish had come true! Chewoo and her friends are so shocked and decide to hold another birthday party to make another wish.

One day in Greenit a big sinkhole appears in the forest. At first Yoohoo and his friends are awed by this phenomenon but become worried as more sinkholes appear in the village. Yoohoo and his friends all fall into the sinkhole and meet a mole deep in the ground. They find out that the mole lost its way home and all the digging to find its way back had resulted in the numerous sinkholes.