In this underwater puzzle game you control fish secret agents Max Flounder and Tina Guppy. Seemingly a common case turns into a tough fight with a mysterious enemy and the strings appear to lead pretty high. Fortunately, you are not alone. Cool crab brothers, a retired agentess, lost baby seahorse and peculiar pair of snails - all of them will join you to help you to discover the evil one. You will need all your wits if you want to win.