Future Water World

In 2500 AD, the earth's polar glaciers melted in large quantities, and the earth became a vast ocean. People could only survive on the water and built floating islands on the water. Soil became a rare thing. One day, a lonely sea traveler (Kevin Costner) came and exchanged a jar of soil for fresh water and tomato seedlings. Just as he was about to leave, the locals discovered that he had gills and webs. They thought he was a monster and locked him up, preparing to execute him in two days. One day, pirates attacked the floating island. Helen (played by Jeanne Tripplehorn) and her adopted daughter Ilona (played by Tina Majorino) failed to catch the escaping lifeboat, and they rescued the Sea Walker. With extraordinary wit and bravery, Sea Walker escaped with Helen and Imona. It turns out that the target of the pirates is only Ilona, ​​and Imona's life experience hides a shocking secret...