Tom Curry is a brave man who works as a lighthouse keeper. At one night, he noticed that there is a woman in a trouble and he managed to rescue her from a real danger. After that, he knows that this woman is Atlanna, the princess of the underwater nation of Atlantis. They fall in love with each other and they have their child, Arthur Curry, who seems to be very special child. Arthur has a special gift of controlling the marine lifeforms, the thing that helps him to defend for his people when Atlantis becomes in a dangerous situation under the attack of some pirates.