Finally, vacation! This year, 14-year-old Toni is spending the summer with his father, his new stepmother and her sons, Veeti and Aleksi. While the rest of the blended family is enjoying the sun and sea on the Greek island of Kos, Toni wants nothing more than to go home – his stepmother gets on his nerves and, as far as he’s concerned, his new stepbrothers are childish idiots. The only thing on the island he’s interested in is local girl Adriana. It’s just unfortunate that she’s a serious free diver, while he can barely put a toe in the water. Then Adriana is kidnapped and Toni is her only hope of rescue. Dealing with a missing treasure, unscrupulous smugglers and corrupt police, he doesn’t know whom to trust. There’s only one way out – he needs to join forces with Veeti and Aleksi and finally admit that you can’t always go at it alone.