Watch Online Free HD Solarmovies. In the film we see an oil tanker sailing across the Gulf of Finland. On her way she passes through one of the most beautiful and most valuable marine areas. At the same time, under the surface, the medusa - a species dating back 500 million years is undergoing a transformation that takes six months. In the film these very different creations traverse the Gulf of Finland and also meet each other and abundance of the ocean life.