Picasso comes to Greenit to draw mystical animals just like the great artist, Davinchi. Picasso meets Chewoo, who he has seen in Davinchi's painting, and begins to draw portraits of Yoohoo and his friends. After the paintings are finished, only Chewoo seems to like the end result. It just so happens that Chewoo has similar drawing techniques to Picasso and begins to show her work to him.

Yoohoo and his friends have gone to play in the ocean. They meet a squid and learn there is a black spring inside the ocean. Oops and Koops overhear this and tells Big Boss about the black spring. Big Boss orders them to search for the black spring since it may be where the oil spring lies. Oops and Koops find the ocean's black spring and unplugs the entrance.

Pammee is diagnosed with an illness that cannot be cured. It is the princess illness! The doctor tells Yoohoo and his friends that the only way to cure Pammee is to refrain from telling her she is pretty. At the same time back at Big Boss' castle, Oops and Koops are being reprimanded for not doing anything right. Big Boss gives them an order to kidnap either Pammee or Chewoo.