The story begins on the ship of the infamous pirate Redbeard who has found a map that leads to the legendary Clamulet that will give him control over the seven seas. Elsewhere, Sassette is playing on a beach building sand mushroom houses to remind herself of her peaceful village. But her reminiscing is cut short by a large wave that washes away her sand village and an angry sand crab. Grandpa Smurf and Snappy quickly arrive and save Sassette from the crab. Sassette is unmoved however due to being deeply homesick and missing her friends and peaceful life. Grandpa then consoles her and tells her that as long as he's around no harm will ever come to her.