An enchanting adventure through the sea and space!
Astéria, an adorable little starfish, dreams of going on an adventure, just like her hero, Captain Octopus.
One morning, as she gazes at the starry sky giving way to dawn, a spaceship from outer space crash-lands next to her. On board is Stella, a daring shooting star who urgently needs to find methane gas to be able to return to her home in space.
Together, they embark on an exciting quest to find methane under the oceans. During their journey, Astéria introduces Stella to the fascinating diversity of marine species, while Stella shares her knowledge about Earth, the Moon, and the Sun. Gradually, they realize the magical connection that ties underwater life to the vastness of space.