Kardeş Payı is a Turkish television series produced by NTC Medya. The main characters are two brothers and their sister. The two brothers are plumbers, however they are trying to invent an engine, working with boron or water. Their goal is to make the world a better place. The father of the characters is a fanatic fan of Besiktas and he gave the names of 3 legendary football players of Besiktas to his kids. Metin, Ali, Feyyaz.