 Captain Dogwood has been lost at sea, and now it s up to his two puppies, Tina and Andy. Aided by Salty the Pelican and Echo the Dolphin (and avoiding a nasty gang of cats and a living storm called Typhoon Tessie), they journey on the talking tugboat Little Toot--eventually finding their father, and rescuing him from the soon-to-erupt volcanic island, Krackaninja!