It is 5,000 years since Poseidon, an evil dictator beant on ruling the oceans, destroyed the beautiful society known as Atlantis. There is only two survivors- Triton and Pippi.The show is about the battle against good and evil, Poseidon against Triton and Pippi. With the help of their dolphin friends, and a weapon called the Orihalcon dagger, which can kill Poseidon, Pippi and Triton try to free the ocean. The show only aired in Japan, and later Italy. There was also a theatrical version.