Big Boss has created a magic potion. This potion enables Oops and Koops to transform into a fake Yoohoo and Pammee. In their disguises they go to the village and begin to make trouble. While in the village the real Yoohoo and Pammee confront them, and they begin to fight over who is real and who is fake.

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.