In the beautiful island of Kos and in the turquoise Greek seas, 15-year-old Adriana will meet 14-year-old Tony, who is on the island for holidays with his family from Finland, and between them will develop a youthful romance and a tender relationship of love and trust. Overlooking the Aegean Sea, the two children, along with Tony’s brothers, 12-year-old Alexis and 10-year-old Veeti, will unwittingly entangle in a dangerous adventure: charming Andriana is being kidnapped by a gang of smugglers who prey on the lost treasures of Athanasios, a local legend. The three boys will move heaven and earth to save Adrianna and find the treasure. Through this adventure in Greece, the relations of the three boys will tie and the romance of Andriana and Tony will leave a promise for the future.