Chewoo discovers a dinosaur's egg left at her doorsteps. As the egg hatches a baby dilophosaurus appears and it believes that Chewoo is its mother. From that day forth Chewoo begins to take care of the baby dinosaur. While Chewoo and the baby spend their days in bliss, the mother dilophosaurus come to Greenit and rampages the village to find her missing baby.

Pammee has the best ears in all of Greenit and can even hear sounds that are far away. Thanks to Pammee's great hearing skills, the friends were able to put a stop to Oops and Koops who were throwing garbage away in Greenit during the night. One day a gift arrives at Pammee's house. In the gift box there are a pair of small and round earmuffs.

The friends are listening to Chewoo's story about a sunken treasure ship at the bottom of Greenit's ocean. Yoohoo and his friends decide to look for the ship and they use Roodee's robot fish to lead the way. While on their treasure ship hunt they come upon many sick ocean creatures.