Pebble and Feather get washed out to sea in a terrible storm and find themselves next to a dead coral reef.
It isn't a very nice place to be and not at all like the beautiful colourful coral reefs they imagined. Things get worse when a big fish grabs Feather and swims away. Pebble is so upset, and he doesn't know if he will ever see Feather again! While Pebble is crying and distraught the sea whispers an important message to him about why the coral reef is dead and what must be done.