Kuruluş: Osman - Season 6

In episode 165 of *Kuruluş Osman*, Osman Bey seeks unity among Turkish lords while facing the arrival of Vizier Emir Ömer, who reveals the theft of sacred relics. Commander Lucas plots against the Turks, holding the relics and using Osman’s son, Alaeddin, as a captive. Orhan Bey and Holofira’s paths cross again amidst these tensions.

Osman Bey conquers Karadin Castle, while Alaeddin’s fate is uncertain. Commander Lucas plots against Osman and Karesi Bey using sacred relics. Orhan Bey proposes to Holofira, and Saruca and Yusuf vie for Fatma Hatun's affection. Gonca Hatun faces a tough childbirth, and Begüm accuses Hazal Hatun of poisoning her.

Osman Bey's pledge to protect the sacred Islamic relics elates the Kayı tribe but fuels Karesi Bey's jealousy. To thwart Osman, Lucas sets a trap in Karadin, complicating Begüm Hatun's situation. After her setback, Begüm plots to undermine Bala Hatun. Meanwhile, it's revealed that Cecilia poisoned Gonca Hatun, straining her relationship with Holofira. Orhan Bey devises a plan to kidnap Holofira from her arranged marriage, but they encounter a trap. Lucas and Karesi plan to financially damage Osman by building a bridge. Osman discovers Karesi's deceit. The unfolding drama sees Gonca's feelings towards Holofira change, and the possibility of Orhan and Holofira's reunion.

Osman Bey's escape angers Lucas and Karesi Bey, who plan a new move against him. During a wedding in Kayı Oba, Lucas incites a Greek rebellion in Söğüt, shocking everyone. Lucas also pressures Karadin Castle, putting Osman Bey in a tight spot as he deals with both threats. Osman Bey escapes a trap, while Orhan Bey and Holofira face danger from Lucas' men. With no obstacles left, Osman Bey plans a grand wedding for Orhan and Holofira. Tensions rise between Gonca Hatun and Holofira due to lingering pain. Begüm and Hazal Hatun notice the strain and may exploit it. Gonca Hatun considers leaving Kayı Oba with Alaeddin Bey. Yusuf and Saruca vie for Fatma Hatun's affection, leading to a showdown between them.

Osman Bey learns that Karesi Bey thwarted Lucas's attempt to capture Karadin, and in gratitude, he gifts Karadin Castle to Karesi Bey. While they haven't formed an alliance, they decide to trade, but Karesi Bey might have a hidden agenda. The Greek Rebellion in Söğüt intensifies, and Osman Bey is determined to restore peace. He plans to destroy the rebellion’s instigators and catch their leader, Arcadeus, by surprise. Sofia, Osman Bey’s longtime enemy, returns and teams up with Lucas, swearing revenge. She severely injures Baysungur, who reaches Osman Bey covered in blood. Osman Bey is now focused on avenging Baysungur. In the Kayı Obası, tension persists between Gonca Hatun and Holofira, with Hazal and Begüm Hatun taking sides. Bala Hatun must address this issue, and her warnings to her daughters-in-law will have significant effects. The tension between Begüm and Bala Hatun also escalates, causing further strife.

Osman Bey plans to strike a significant blow to Byzantium and Karesi Bey by conquering Akhisar. Meanwhile, Karesi Bey declares martial law in Karadin, aiming to solidify his control. As Osman Bey focuses on his conquest, Bala Hatun takes charge of maintaining internal peace, aware of the tension between Gonca and Holofira. Begüm Hatun seeks to intensify this discord. Sofia, determined to cause chaos, kidnaps Fatma. The abduction of Fatma, Saruca, and Yusuf shocks Söğüt Pazar. Bala Hatun, upon hearing the news, immediately pursues them to bring Fatma back.

Before avenging Baysungur's martyrdom, the kidnapping of Fatma Hatun, Saruca, and Yusuf by Lucas and Sofia deeply disturbs the Turks on the fringes. Osman Bey faces a dilemma as Lucas and Sofia demand Söğüt in exchange for Fatma, putting Osman Bey in a challenging position. He decides to surrender Söğüt but has a larger plan in mind to save Fatma without losing Söğüt. Karesi Bey declares war on Osman Bey, seeing him as vulnerable after the kidnapping. Karesi Bey aligns with Gencer Bey to strike Osman Bey. Lucas uses Yusuf and Saruca to extract information about Osman Bey’s plans, testing the loyalty of Begüm Hatun and Bayhan Bey. They are challenged to either betray Osman Bey to save their loved ones or remain loyal to him. Orhan and Alaeddin risk their lives to save Fatma amidst the unfolding tensions and conflicts.

Sofia plans to take revenge on the Kayis by drawing them into a deadly trap, putting Bala Hatun at risk of becoming a martyr. The fate of Gonca Hatun and Holofira is uncertain as they fall into Sofia's scheme. Lucas realizes there's a traitor causing their defeats and plans to uncover this person. Ilbay, now exposed, faces the threat of martyrdom at Lucas's hands. Boran and Cerkutay blame Begüm Hatun and Yusuf for their troubles and are disturbed by Begüm's presence at the council. Begüm uses her market duty to escalate tensions between Gonca and Holofira, prompting Bala Hatun to take action against her. Gonca Hatun, upon learning of Begüm Hatun's love for Osman Bey, must decide how to handle this sensitive information.

Osman Bey prepares to hold accountable those who attacked Bala Hatun and his family. Sofia, who kidnapped Osman Bey's daughter Halime years ago and raised her as an enemy, sets a trap involving Halime. Poena, unknowingly attacking her sister Fatma at Söğüt Market, adds to the tension. Osman Bey suspects Gencer, Begüm, or Bayhan as traitors collaborating with Lucas, Sofia, and Karesi. He closely monitors them. Learning about Begüm Hatun's meeting with Karesi Bey, Osman Bey imprisons her. Begüm escapes and seeks refuge with Karesi Bey, who proposes to her. Osman Bey tracks down Begüm's kidnapper and confronts Karesi Bey, resulting in bloodshed. Osman Bey plans to protect his family from Lucas and Sofia's threats, determined to exact revenge.

Osman Bey, wounded by an arrow shot by Poena (Halime) while seeking what Sofia hid in a monastery, remains determined to defeat Sofia and Lucas despite his injury. Sofia and Lucas must devise an escape plan while dealing with Poena. In the Kayı Tribe, Sofia plans to use Poena (Halime) to end Osman Bey and Bala Hatun, requiring Poena's infiltration into the camp. Bala Hatun, grieving her lost child, visits Halime's grave, where Poena attempts to kill her. Karesi Bey declares war on Osman Bey, with Lucas joining him. Begüm Hatun informs Osman Bey of Karesi Bey's plans, risking her life if Karesi Bey discovers her betrayal. Sofia and Lucas's attack on Osman Bey's headquarters targets Bayhan Bey, potentially making him a martyr, which would significantly impact the upcoming war. Osman Bey must confront Karesi Bey's alliances and fight alone against their combined forces, navigating these numerous threats and conflicts.

Osman Bey besieges Akhisar Castle, battling both the Mongols, who destroy Turkish tribes, and Sofia, who plots revenge. The Mongol envoy demands taxes from Osman Bey, which he refuses, angering the ambassador and leading to massacres. Osman Bey, undeterred, targets Akhisar, facing the Mongol threat and Sofia's new traps. Lucas and Sofia plot to stop him, while Poena provides Sofia with camp information. Key challenges include Bala Hatun's response to the Mongol envoy, Osman Bey's strategy for Akhisar, preventing massacres, and handling Sofia's schemes. The outcome hinges on Osman Bey's leadership and tactical decisions.

The Mongol Commander Ulugan arrives at the Kayı Tribe to challenge Osman Bey, intending to destroy his reputation and life. Osman Bey must decide how to respond to Ulugan's threat and plan. Meanwhile, the Mongols capture and brutally torture Prince Orhan in Karacahisar. Osman Bey faces the challenge of rescuing his son amidst this brutality. A poison spreads through the tribe, endangering lives, including Poena's. Alaeddin Bey searches for an antidote, while Bala Hatun fears losing Poena, not knowing she is her daughter Halime. Osman Bey increases precautions against the Mongols, and Ilbay plans to counter these measures, aiming to thwart Osman Bey's defenses. The tribe faces multiple threats, testing their resilience and leadership.