When Tin visits the forbidden sea with his father for the first time, the unbelievable happens: a giant octopus rises and pulls Tin´s father down! Tin jumps after and suddenly turns into a real merman. While searching for his father, he is attacked by sea monsters and rescued by George, a mysterious shining whale. George reveals to Tin that his family is hiding an ancient secret: they are the keepers of the seas! What´s more, Tin´s own uncle Zerkas has kidnapped his father to become the lord of the seas! Together they set out to free Tin´s father and save the seas!weiterlesen