Without Grandma Grouper's Kelp Seeds, all the fish will go hungry. Luckily, Freddi Fish and her finny friend, Luther, are on the case. But the ocean is a big place and there's much ground to cover, including caves, canyons, reefs, and more. Children will dive right into this fascinating adventure and all of the colorful characters that go with it. It's an underwater world of discovery, laughter, and learning.