Jack and Lily Legend are back! Life in North Cyprus is good, and their family secrets seem to be safe. Then, on the same day that interesting new neighbours move in, Lily makes an unusual friend. Out sailing with Jack, she falls overboard and gets entangled with a giant squid. When a dolphin swims to save her, she gets the shock of her life... With the help of their new friends, Jack and Lily must try to rescue a group of marine creatures and solve the mystery of the local pearl cave. But can they succeed before their past life catches up with them?