One sunny morning, Luna, Jupiter and Clyde are in the backyard racing boats in their little play pool. As the race reaches its climax, Clyde’s boat suddenly runs into trouble and sinks. What’s happening here? Maybe a whale sunk the ferret sailor’s boat. Or maybe it was an iceberg? But what exactly is an iceberg? On this chilly adventure, they’re going to become icebergs and discover just how cool those ice giants really are.