Kuruluş Osman Season 4 Episode 15
Tensions rise as Mongolian Commander Nayman demands a ransom for Samagar's murder. Ismihan Sultan summons Germiyanoglu, Candaroglu, Karesioglu, and Osman Bey. The Beys hold Osman Bey responsible and insist he pay the ransom. However, Osman Bey stands firm, refusing to negotiate. He asserts their equality and rejects paying any price for Samagar's head. Meanwhile, Olof gathers a large Byzantine army, posing a threat to Inegol. Osman Bey faces challenges from both the Mongols and Olof, endangering his principality.
Guest Stars

Kaan Yalçın
Öktem Bey

Ümit Belen
Andronikos II

Deniz Barut
Valide İsmihan Sultan

Durukan Çelikkaya
Sultan Alaeddin

Ipek Karapinar
Frigg