Sharko finds an old trunk full of gold coins; he builds himself a palace fit for a king and buys the entire island to seduce the mermaid; seems no one ever told him that money can't buy you love.

Marina wants legs more than anything and one night her wish is granted by a Good Fairy. But soon Marina realises that her dream is more of a nightmare! She can't walk properly, can't swim anymore, etc. If only things could be like they were before!