The heroic deeds of the dolphin boy made him a legend among the sea creatures and the inhabitants of the island, but despite his fame, he feels lonely, because everyone around him expects only new achievements from him, and he has almost no real friends. In addition, he still does not know the story of his origin, even his real name is a mystery to the boy. The sudden appearance of huge whales and evil crabs in the sea strikes fear into the hearts of the islanders and sea creatures. Fate throws a new challenge to the dolphin boy, but at the same time gives him hope.

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