Hippo, a small seahorse with great curiosity, lives carefree in the colorful seabed, along with the corals and his friends.

However, the tranquility of his world suddenly changes completely!

Trapped inside a plastic bottle, he embarks on an adventurous journey that brings him face to face for the first time with fantastical creatures, great challenges, and even the surface of the sea!

Will Hippo find his way back home?

And what can he do to protect his magical underwater home from the threat of trash?

A story full of action, fantasy, and a strong message for the protection of the environment.