The rush and preparations of the Kırlangıç Island Marathon surround the whole island. Görkem puts Sadık in a difficult preparation process while he is determined to race Sadık in the marathon. While the mysterious journalist Hasan, who came to the island for the marathon, is a great threat to Selma, this journalist will cause Nehir to make radical decisions in her life. Couples Haziran and Poyraz & Melisa and Alper start a race about how well they know each other. While Biricik and Beyazıt are facing a new problem in their relationship, the decision of Haziran and Poyraz will surprise everyone.