Suliana wants Jona to join her ecology club at school. He is good at making things, and she needs him to build something special to help keep the ocean around Fiji clean. But when Nicola arrives from Australia, she is all that Jona can think about. At the same time, there is a problem with bacteria in the island's drinking water. Now everyone has to buy bottled water. This is bad for the environment and expensive for the island's people. When he is at Nicola's house one day, Jona sees something strange, and he begins to question if there is really a problem with the water at all...