A giant underwater army commanded by Old Blue, the oldest and wisest of the Creatures of the Deep, prepares to do battle with the heartless whale killers of the Faroese fishing fleet. War looks inevitable unless Wee Bottlenose, a young Scottish dolphin, can find the only creature capable of bringing the two sides together. But can this mythical creature be found before battle commences? Does she even exist? As the brave young dolphin's magical journey takes him into strange new underwater worlds filled with fantastical new aquatic creatures, he knows only two things for sure – time is running out and war will benefit no one.