After admiring the new movie poster for Bob the Barbarian Conquers The Kraken, Tiny wants to battle a kraken in the choppy seas, too! There's just one problem: Tiny doesn't know how to swim! Off to the community pool for Tiny's first swim lesson! With a swim cap stretched over his signature barbarian "helmet" and some cool new gear, Tiny learns to blow bubbles, float, dog paddle, kick, and build his confidence in the water. Just in time, because...A tentacled fearsome foe rises from the deep end of the pool! Can Tiny use his new skills to defend his realm, protect his family, and save the day?