Ecco the Dolphin: Defender of the Future

At the dawn of the 30th Century, dolphins and humans had been together in a cross-species society for 500 years. Together, they had set out to explore space, offering peace and friendship to all who would welcome it. But space had its dangers; a violent species known as the Foe decided to conquer Earth. However, the dolphins and humans drove them to the brink of defeat, and so the Foe sought vengeance on Earth. The few caretaker dolphins who had been left behind on Earth were