Aytolun and Gümüştekin are killed after their treachery is caught when Selcan's words are listened to and Korkut is killed.

What happened Korkut Bey?

He is manipulated by his wife Aytolun, and is eventually poisoned to death by her. He also becomes the father-in-law of Gokce Hatun played by Burcu Kiratli.

What episode does Sungurtekin return?

In season 2, he is a spy of Sultan Alaeddin in the Mongol empire. At the end of the season, Gundogdu and Sungertekin stay in the Dodurga tribe but Ertugrul and Dundar leave the Dodurgas with the Kayis. He returns in season 4 to visit the Kayi tribe.