Nayman seeks revenge against Osman Bey, luring Orhan Bey to his headquarters under false pretenses. Osman Bey sets a trap to defeat Nayman in Yenisehir. Finding the seal becomes Osman Bey's priority, while Nayman assigns Bayindir Bey to retrieve it, pursued by Turgut Bey. Bengi Hatun appoints Aktemur as leader, causing discontent among Malhun Hatun and Bala Hatun. Ayse Hatun worries about her son's future. The unexpected arrival of Black Midwife Feristah, Ulgen Hatun's mother, brings surprise but leads to an unpleasant encounter with Cerkutay.

Despite challenges from Ismihan Sultan and Nayman, Osman Bey persists in his conquests with a clear goal. He prepares extensively for the conquest of Köprühisar. However, a devastating surprise awaits as Ismihan Sultan collaborates with Nayman to destroy Osman Bey. Ismihan assigns Bayındır Bey to assassinate Osman Bey in his mansion, while Bengi Hatun supports Ismihan Sultan. Nayman attacks Osman Bey's war headquarters, and the mansion is engulfed in flames.

Nayman's ruthless raid injures Bala Hatun and sparks Osman Bey's determination for revenge. Turgut Bey and his Alps are captured by Nayman, facing decapitation. Holding Turgut Bey hostage, Nayman threatens Osman Bey's compliance. In response, Osman Bey prepares an unexpected plan. Ismihan Sultan provokes Sultan Alaeddin, solidifying her opposition to Osman Bey.

Nayman seeks an alliance with the Tekfur of Bursa against Osman Bey, causing Osman to confront the Tekfur directly. Ismihan Sultan collaborates with Nayman, planning to eliminate Osman Bey from within. Meanwhile, Osman assigns Cerkutay to counter Nayman's power. The situation intensifies as Osman realizes Nayman's target is Yenişehir.

Malhun Hatun is imprisoned for attempting to kill Ismihan Sultan. Osman Bey is determined to rescue her and refuses to leave her behind. Bala Hatun tries to persuade Bengi Hatun to testify truthfully, but it puts Alçiçek's life in danger. Lord Valens is aware of Osman Bey's plan to crown Sultan Mesud, and Ismihan Sultan plots a trap for him. Osman Bey finds himself in a difficult situation, cornered by these circumstances.

Despite being taken to death row, Osman Bey remains hopeful. Meanwhile, Bala Hatun receives Esrigün, the commander of Gazan Han, and his adopted daughter. On the other hand, Malhun Hatun departs to assist the Kargın tribe.

As Osman Bey continues to pursue his goal of establishing a state, he finds himself facing formidable adversaries. He not only grapples with enemies disguised as friends within his own ranks but also engages in a battle against the Byzantine Empire on the outside. Osman Bey has set his sights on a specific objective: the conquest of the Marmara Fortress, a crucial step towards gaining control over Bursa and Iznik, and further advancing his ambitions.

Osman Bey and his warriors are trapped by Tekfur Valens, but Bala Hatun arrives to support them. Nayman ambushes Malhun Hatun and Fatma's life is endangered. Tekfur Valens discovers Osman Bey's camp, setting the stage for a fierce confrontation. Osman Bey's united followers are prepared to fight by his side.

Nayman's determination to harm Osman Bey leads to a fierce battle, but Osman Bey captures him. Tekfur Valens shifts his focus to destroy Osman Bey with a formidable army, planning an unforeseen scheme.

Osman Bey displays keen awareness of Commander Muzalon's actions and strategically launches a dual-sided attack, resulting in a decisive victory for Osman Bey and his forces over Byzantium and Muzalon's army in the Koyunhisar region. This triumph holds significant implications for both Byzantium and Anatolia, signifying the true beginning of Osman Bey's independent Beylic. Riding across the land, Osman Bey emerges as a respected leader, garnering attention and admiration from the East, West, and Turkmen Beylics.