Years after the Bapheus victory, Osman Bey's children have become beys. As Osman Bey continues his conquest for Bursa, news arrives that Sultan Mesud has been poisoned, sparking a power struggle for the Sultanate. Bala Hatun, grieving the loss of her child, battles a serious illness. Germiyanoğlu Yakup Bey, who set up a market on the Yenişehir-Germiyan border, survives an assassination attempt marked by a Kayı, raising tensions with Osman Bey. Vasilis, a hidden enemy, plots to revive Rome amid the search for a new sultan. Osman Bey sends his son, Alaeddin Bey, to Konya following the poisoning news, where Yakup Bey’s daughter also arrives, with Yakup Bey aiming for the Sultanate. In weakened Konya, irregulars settle in Uçlar. Orhan Bey invites these Sancaksız irregulars to join Osman Bey’s holy war, and this news reaches Yakup Bey’s son, Mehmet. Amidst these events, poet Yunus Emre arrives in Yenişehir, potentially influencing Osman Bey's spiritual life.

Yakup Bey confronts Osman Bey, demanding his allegiance. Cerkutay returns to Yenişehir Palace, creating a festive atmosphere but harbors anger towards Osman Bey. Yakup Bey puts Osman Bey in a difficult position with his Lefke move, but Osman Bey intends to outmaneuver him, knowing Yakup Bey's true intentions. Meanwhile, tension rises between Mehmet and Orhan over Holofira, who wants to return to her homeland but faces opposition from Orhan. Gonca seeks a treasure map from Alaeddin Bey, leading to their confrontation at the caravanserai. Alaeddin reunites with his mother, Bala Hatun, who informs him of Yakup Bey's demand for allegiance from Osman Bey. Saadet Hatun arrives in Uç Pazar and reacts strongly upon learning of the assassination attempt on her husband, Yakup Bey. Osman Bey plans to host all the beys and Yakup Bey in his palace, but the real outcome of their tension is yet to unfold.

Osman Bey believes Sultan Mesud's treasure is the key to ending Yakup Bey's dominance. He tasks Orhan Bey with finding the treasure and Alaeddin Bey with monitoring Yakup Bey. Learning of the treasure, Yakup Bey is determined to claim it for power, setting the stage for a race between the two factions. As Orhan searches for the treasure, he crosses paths with Holofira, while Mehmet Bey, under his father's orders, plans to seize it, creating tension between him and Orhan. Meanwhile, Alaeddin's surveillance of Yakup leads to a personal moment with Gonca Hatun, where he questions her feelings for him. Elsewhere, Osman confronts the Sancaksız people for their actions, while tensions rise between Malhun Hatun and Saadet Hatun in the Uc Pazar, where Yakup appoints Cerkutay as patron. Osman and Bala Hatun travel to address unrest, unexpectedly encountering Yakup Bey, who claims the area as Germiyan's property, further escalating their rivalry over power and the treasure.

Osman Bey plans to unite against the Mongols by paying their tax and gathering an army with Yakup Bey. Despite the raid on Yenişehir Palace and the stolen treasury, he remains determined. Tensions rise among the women as Malhun Hatun and Saadet Hatun clash, with Bala Hatun joining in. Saadet Hatun targets Holofira to undermine Orhan, while Bala Hatun worries about her son Alaeddin's involvement with Gonca. Cerkutay visits the injured Boran Bey, hoping to mend relations with Osman Bey and the Alps. Orhan Bey finds the stolen treasure at Bayındır Bey's place, leading to an execution order for Bayındır Bey. Master Gera causes chaos in Söğüt, starting a fire that Alaeddin Bey and Bala Hatun must extinguish. Osman Bey faces unexpected challenges from the Mongol Commander while trying to pay the tax.

Osman Bey and his alps escape from the Mongols and plan a counter-raid. News of a raid on Söğüt spreads, causing alarm. Malhun Hatun plans to counter Yakup Bey, who might exploit Osman Bey's absence. Orhan Bey is unhappy seeing Holofira in the market, and Malhun Hatun warns him about trusting Byzantium. Saadet Hatun wants Holofira as her bride and influences Gonca Hatun to tie Alaeddin to Yakup Bey. Tensions rise as Orhan Bey opposes Yakup Bey's control over Yenişehir. Yakup Bey prepares for conquests, placing his son Mehmet Bey in command, which Orhan Bey disapproves of. Danger approaches the cave where Osman Bey and his alps take shelter. Mehmet Bey and Orhan's tension escalates during their conquest, with Mehmet ordering Orhan's assassination, but unexpected events unfold. Osman Bey remains determined to resist threats to his rule, declaring his resolve for freedom.

Osman Bey and Yakup Bey rush to Kestel to rescue their captive children, Orhan and Mehmet. The Tekfur of Kestel demands castles in exchange for their release. Yakup Bey agrees, but Osman Bey opposes, aiming to rescue the children and conquer Kestel. Yakup Bey blames Osman for Mehmet's capture, urging him to find the palace traitor. Alaeddin informs Malhun Hatun that Holofira is the traitor, possibly influenced by Vasilis. Orhan and Mehmet endure torture in Kestel Castle, unaware that Master Gera is behind Tekfur Makranos. Bala Hatun confronts Saadet Hatun, refusing to surrender the castles and imprisoning Saadet and Gonca. Yakup Bey negotiates with the Tekfur, potentially defying Osman Bey's stance. The situation escalates as Osman Bey must decide his next move.

Karacelasun seeks vengeance for his brother and meets Master Gera, considering an alliance. Orhan Bey and Holofira's love grows, but Malhun Hatun upsets Holofira. Alaeddin Bey and Gonca Hatun clash, and Karacelasun raids the Uch Bazaar, angering Mehmet Bey who blames Osman Bey. Osman Bey, aware of danger, remains steadfast. Yakup Bey and the Turkmen Beys meet, refusing to let the Mongols or Byzantines prevail. Osman Bey knows the Mongols and Turkmen Beys are after him and Yakup Bey. Yakup Bey’s life is in danger. Osman Bey and his alps face traps trying to save Yakup Bey from Karacelasun's ambush. The outcome remains uncertain.

Osman Bey rescues Yakup Bey from Karacelasun, emphasizing his commitment to Islam. Karacelasun seeks revenge with a new plan against Osman Bey, who assigns Orhan Bey to thwart him. Gonca Hatun's condition worsens, prompting Alaeddin and Mehmet to search for a cure. They encounter Crusader soldiers, and Yakup Bey, aware of Gonca's condition, vows to hold the Mongols and the Kayı accountable if she suffers. Alaeddin Bey struggles to find a cure for the poisoned victims in Uç Pazar, growing increasingly desperate. Cerkutay, in anguish, holds his poisoned child, with Ülgen Hatun also deeply affected. Yakup Bey manipulates Cerkutay against Osman Bey, blaming him for their misfortunes. Vasilis, revealed as a traitor, takes refuge with Yakup Bey, accusing Osman Bey of deceit. Yakup Bey, enraged, plans to hold Osman Bey accountable, escalating the tension between them.

Karacelasun seeks revenge and allies with Master Gera to kill Osman Bey's son, Alaeddin. Bala Hatun, learning of Alaeddin's capture, confronts Saadet Hatun at Uç Pazar. Karacelasun encounters Orhan Bey in a fight, but Osman Bey appears, cornering him. Orhan Bey declares his desire to marry Holofira, and Malhun Hatun explains the sacrifices required to be a Bey's lady. Orhan Bey and Alaeddin Bey capture Vasilis, and Yakup Bey reacts to Vasilis' escape from Uç Pazar. Alaeddin Bey faces an attack in his tent, putting his life in danger. The tension between Osman Bey and Yakup Bey continues, with Yakup Bey keeping the Sancaksızlar’s secret. Orhan Bey, seeing Mehmet Bey give Holofira a ring, takes her away on his horse. Osman Bey hosts all the Beys in Yenişehir to address their grievances, closing the gates while they are inside. This move's purpose remains uncertain, as does whether it will clear him of suspicion.

Osman Bey hints at knowing Yakup Bey's schemes, planning to reveal them while hosting the beys. Orhan Bey takes Holofira, causing tension with Mehmet and confrontations with Saadet and Malhun Hatun. Alaeddin confesses his love to Gonca, seeking Bala Hatun’s advice. Yakup Bey plans to exchange Vasilis for gold with the Crusaders, influenced by Master Gera. Malhun Hatun insists Holofira must become a Muslim to marry Orhan, which she refuses. Karacelasun clashes with Mehmet, Orhan, and Alaeddin during the Vasilis exchange, winning the fight. Osman Bey blames Yakup Bey and plans to save his children from Karacelasun.

Orhan, Alaeddin, and Mehmet Beys fight Karacelasun with all their might, seeking to break his superiority. Osman Bey suspects Ayhan Ağa advised Yakup Bey on the exchange, aiming to uncover the truth and reveal Master Gera's true face. Yakup Bey considers Mehmet's entrapment a weakness and plans to make him pay. Osman Bey faces Karacelasun to avenge his martyrs, leading to a significant clash. Gonca Hatun and Alaeddin Bey confront each other, but Gonca's response disappoints Alaeddin, who remains skeptical. Yakup Beys request Holofira from her aunt Olivia, awaiting their consent. Orhan, angered by Mehmet's actions regarding Holofira, reacts furiously and contemplates his next move.

Osman Bey establishes an independent principality, celebrated with prayers and festivities in Yenişehir. Yakup Bey sees this as a challenge, questioning what his next move will be when facing Osman Bey. A new threat arises with Gorklu Khan, an Ilkhanate emir aiming to marry the Byzantine Princess. This marriage could strengthen Byzantine-Ilkhanate relations and threaten the Turks in the Borders. Osman Bey, aware of the danger and Gorklu Khan's hostility, strategizes to prevent the marriage and take Princess Maria, aiming to safeguard the fate of the Turks.

Osman Bey vows revenge after witnessing the great massacre in Söğüt. He prepares to confront Gorklu Khan. Yakup Bey informs Yenişehir tradesmen that he won't collect taxes in Uç Pazar, leading to a plan by Bala and Malhun Hatun to counter this move. Saadet Hatun threatens Ülgen Hatun by revealing that Cerkutay is spying, causing Ülgen to make a critical decision. Saadet Hatun also tells Bala Hatun that Alaeddin should stay away from Gonca, with an unclear motive behind her warning. Gorklu Khan threatens Yakup Bey while searching for the princess, putting Yakup Bey in a difficult position. Karacelasun kidnaps Holofira to exchange her for the princess, leading to a confrontation with Orhan Bey. The outcome of their entrapment remains uncertain. Finally, Osman Bey and Gorklu Khan face each other with their armies, ready for a significant encounter.

Osman Bey, determined to establish a state, faces Karacelasun, who raids Uraz Bey's camp, and Görklü Han, who prepares for war at Yenişehir's gates. Osman Bey's response to the Mongol threat is crucial. Bala Hatun and Malhun Hatun plan to rescue Orhan Bey and Holofira from the Mongols. Meanwhile, Mehmet Bey goes into a frenzy upon seeing Alaeddin Bey and Gonca Hatun together, leading to a significant fight. Holofira's aunt Olivia, with Yakup Bey's support, demands an explanation at Yenişehir Palace, causing a confrontation between Osman Bey and Yakup Bey. These events highlight the growing tension and conflicts Osman Bey must navigate to achieve his goals.

Orhan Bey, Olivia, and Kite meet Tekfur Leo, who promises them Princess Maria. Orhan Bey's motives are unclear, and the situation impacts his love with Holofira. Following the Yenişehir raid, Alaeddin Bey prevents Yakup Bey from leaving, citing a traitor. Osman Bey aims to keep Yakup in Yenişehir for strategic reasons. Cerkutay faces trial for espionage in Yenişehir, with an execution order looming. Yenişehir remains unsettled as Yakup Bey is shot with an arrow. Saadet Hatun blames Osman Bey's people and confronts Bala Hatun. A new threat emerges with Taceddin Noyan, known for cruelty. Elçim Hatun informs Osman Bey, leading to uncertainty about the Kayıs' fate against Noyan.

Osman Bey faces two new enemies: Taceddin Noyan and the Executioner of Rome, aware that the Tekfurs may rebel. His new goal is to conquer Kite Castle, and he must decide on a strategy. Malhun Hatun is unsure about going on a pilgrimage after a confusing dream. Meanwhile, Saadet Hatun seeks forgiveness from Bala Hatun, potentially easing tensions between Germiyan and Kayı. Alaeddin Bey, angered by Gonca's spying, confronts her harshly, leaving their future uncertain. Orhan Bey, on duty with Elçim Hatun, must clarify their situation to Holofira, who is disappointed by what she sees.

Taceddin Noyan aims to make Osman Bey submit, but Osman plans a counter-move. Taceddin Noyan meets Mehmet Bey in Uç Pazar, and Gonca Hatun, aware of this, informs Alaeddin Bey before being shot. Byzantine Executioner Imren Tegin arrives in Uclar to join forces with Taceddin Noyan. Osman Bey, having captured Karacelasun, confronts Taceddin Noyan to intimidate him, with the outcome of their encounter pending.

Osman Bey surprises Taceddin Noyan by attacking his army at headquarters, catching and punishing him in his tent. Efendize Elçim Hatun and her sister-in-law Ayça discuss Orhan Bey, praising his bravery. Gündüz Bey suggests a wedding to ensure Kayı unity, proposing Orhan Bey and Elçim Hatun's marriage. Osman Bey must consider this, with Holofira's feelings in mind. Alaeddin Bey attempts to secretly bring the wounded Gonca Hatun to Yenişehir Palace for treatment. Meanwhile, İmren Tegin, who declared war on Osman Bey, intimidates him by bringing the bloodied Bayındır Bey to Yenişehir, vowing that peace will end only with the last Kayi's death. Angered by recent events, Osman Bey declares war, ready to seek revenge on İmren Tegin.

Osman Bey plans to mislead İmren Tegin by pretending to conquer Atranos before marching on Kite. Gündüz Bey and Elçim Hatun join him on this mission. There is curiosity about the developing relationship between Malhun Hatun and Elçim Hatun. Meanwhile, İmren Tegin sets a counter-strategy against Osman Bey, learning Gündüz Bey's desire for Orhan and Elçim's marriage and collaborating with Olivia to prevent it. Olivia is expected to stir trouble in Osman Bey's palace. Osman Bey assembles his army for Kite's conquest, aiming to deceive İmren Tegin and succeed in his plan.

Osman Bey plans to break the Ilkhanate and Crusader alliance. During an attack on Gonca Hatun's caravan, Alaeddin Bey helps her, echoing their past cooperation. Osman Bey discusses Orhan and Elçim's marriage, aiming for a quick resolution, causing reactions from Orhan and Holofira. İmren Tegin plots to kill Elçim to disrupt the marriage, ordering his spy to act. İmren Tegin also kills Uraz Bey, sending his head to Osman Bey as a grim message. Osman Bey's response to İmren Tegin's provocations is awaited.

Osman Bey prepares his army for his ambitious goal, setting a new plan into motion. Elçim Hatun's anger towards Holofira persists, creating tension with Orhan Bey. Mehmet Bey's news from Kütahya causes a problem for Gonca and Alaeddin. Alaeddin proposes marriage to Gonca, awaiting her response. Malhun Hatun, determined to uncover the truth, imprisons Olivia in the dungeon. Orhan Bey plans a significant attack on Olcaytu's caravan, setting a trap. Finally, Osman Bey faces Imren Tegin, setting the stage for a crucial confrontation.

Spring brings victories, as Ramadan and Nevruz coincide. Osman Bey decides to spend Ramadan with his tribe, anticipating what awaits them. Bala Hatun supports Holofira, whose mysterious survival after being poisoned raises questions about her future with Orhan. Alaeddin and Gonca ride together, facing obstacles they must overcome. Osman Bey sets a trap for the Catalan army, seeking their numbers and routes. He plans to use this information strategically. Imren Tegin awaits the Franks, plotting against Osman Bey. Determined, Osman Bey aims to defeat the Frank leader and thwart Imren Tegin's schemes.

The fight between Boran and Konur causes a stir in the tribe, awaiting Osman Bey's decision. Olivia sees this as advantageous and plans to exploit it. Imren Tegin demands Osman Bey's allegiance, but Osman asserts his superiority, leading to rising tensions. Osman has a plan against Imren Tegin, who is also strategizing against him. Ayça Hatun tries to burn Elçim Hatun's dowry, endangering Gazi in the fire. The tribe must determine if Ayça was responsible. Bala Hatun sets out to support Osman Bey against Imren Tegin's move. Holofira arrives at Osman Bey's camp, and Orhan sees her, prompting a conversation. Alaeddin Bey remains committed to Gonca Hatun, despite their challenges.

Osman Bey gathers his people to save Gündüz Bey and plans a strategic move against İmren Tegin. He also acts to save Uç Pazar, raising the Germiyan flag there again, which could impact Germiyan-Kayı relations positively. Osman Bey asks Alaeddin Bey to make a sacrifice for their principality's future, similar to what Orhan has done. Meanwhile, Holofira returns to the tribe after a final farewell, causing potential revelations for Orhan. As İmren Tegin plots against Osman Bey, Osman focuses on conquering Atranos Castle and has captured İmren Tegin, deciding on his fate.

Orhan Bey and Elçim Hatun's wedding preparation excites Osman Bey, who also plans to counter the alliance between Yakup Bey and Candaroğlu. Osman Bey seeks allegiance from the principalities, facing Yakup Bey's competition. A new, dangerous enemy appears in Osman Bey's lands. Melike Hatun and İbrahim Bey attend the wedding, causing tension with Bala Hatun and Malhun Hatun. Ahmet, Gonca Hatun's fiancé, presents gifts, observed by Alaeddin Bey, sparking conflict. Osman Bey urges unity against Yakup Bey and Candaroğlu İbrahim Bey, warning that disunity leads to disaster. The future hangs in the balance amidst these conflicts.

Osman Bey, determined to save his son, devises a plan to end discord, confronting Ulcay directly. Ahmet's death causes tension in the Kayı tribe, with Osman Bey detaining İbrahim Bey and Yakup Bey to prevent further bloodshed. Melike Hatun and İbrahim Bey, angry over their son's death, vow revenge. Meanwhile, Osman Bey and Bala Hatun marry Alaeddin and Gonca, despite their fugitive status. Orhan and Mehmet clash fiercely as Mehmet seeks Alaeddin and Gonca. On another front, Mehmet allies with Ulcay to free Yakup Bey, plotting to overcome the danger posed by Ulcay. Osman Bey faces potential threats while visiting Ahmet's grave.

Osman Bey fights against a trap and confronts Boran, deciding his fate. Melike Hatun returns to the market, seeking revenge on Alaeddin, Gonca, and the Kayı tribe with a surprising method. Gonca Hatun is captured and brought to her father, standing firm against Yakup Bey. Osman Bey works to find Ahmet's killer and clear Alaeddin, suspecting the real killer will target the trial's Kadi. Osman devises a plan to uncover the truth and protect Kadi from Melike Hatun, who wants him dead.

Osman Bey confronts Yakup Bey and İbrahim Bey over the murder of the judge to save Alaeddin. Tensions rise, but Yunus Emre's arrival impacts the hostility. Bala Hatun investigates Ahmet's murder in Uç Pazar, where a witness mentions seeing Ulcay. Ulcay's reaction is awaited. Elçim Hatun and Holofira discuss Holofira's decision to stay in the camp, prompting Elçim's response. While Bala Hatun manages tribe affairs, Osman Bey's absence raises questions as he heads to Bursa. Yakup Bey and İbrahim Bey plot to take Bursa and İznik, aiming to neutralize Osman Bey. Osman Bey's goal in Bursa is uncertain, challenging Yakup Bey and İbrahim Bey's plans. The conflict between the three principalities evolves amidst these tensions.

Osman Bey is determined to capture Mekece Castle, despite opposition from Yakup Bey and İbrahim Bey, who have allied with the Tekfur. Gonca Hatun struggles with the war between Germiyan and Kayı, torn between her love and her ancestral home. Melike Hatun visits Bala Hatun, claiming to unite against enemies, but Bala tests her sincerity due to past agreements with the Tekfurs. Orhan Bey heads to Ulcay's lair, aiming to capture him. Yakup Bey and İbrahim Bey attempt to sway Gündüz Bey to isolate Osman Bey, using a secret advantage. Osman Bey prepares his strategy, ready to confront the two great beys and secure his objectives.

Osman Bey halts trade with Bursa, İznik, and Constantinople and seizes Uç Pazar, challenging Yakup Bey's response. Ulcay, Konur, and Boran escape from the tribe but are blocked by Konstantin Palealagos' men, raising questions about Konstantin's identity. While celebrating their victories, the Kayı tribe's joy is interrupted by news of Gündüz Bey's raid, impacting Elçim Hatun. Bala Hatun exposes a fake judge scheme to İbrahim Bey, threatening to reveal Melike Hatun's secret. Gonca Hatun and Alaeddin Bey face Yakup Bey's anger, leading to rising tension. Osman Bey decides to declare war on Byzantium, prompted by recent events.

Osman Bey ends the war between the principalities and sets his sights on Bursa. The Yoruk tribes begin a great migration, possibly signaling the siege of Bursa. While the Kayı tribe celebrates good news, Elçim Hatun feels uneasy, hinting at underlying tensions. A new treason game is being set up within the Kayı tribe, with Elçim Hatun at the center and possible involvement from Holofira. Amidst this turmoil, an assassination attempt is made on Osman Bey, led by Constantine Palealagos, the Bursa commander responsible for Gündüz Bey's death. The success of this assassination attempt remains uncertain.

Osman Bey faces Commander Constantine, with the survival of Byzantium or the Turkish state at stake. Osman Bey is determined to fight without stopping and makes his first move against Constantine. Mehmet worries about Gonca Hatun's illness, which might thaw their strained relationship. Constantine receives a letter revealing Holofira works for Osman Bey, leading to potential actions against her. A trick is being set up against Elçim Hatun involving Holofira's exposure. Bala Hatun's response will be crucial. Constantine plans to defeat Osman Bey, who must find a way to escape the trap set by Constantine.

Osman Bey takes action to catch Constantine off guard, ultimately confronting him. The end prepared for Constantine is significant. Mehmet Bey's involvement in the plot against Elçim Hatun leads to a showdown with Alaeddin. This marks a critical impasse for the two principalities. Orhan Bey, concerned for Holofira's safety in Bursa, seeks to take her away. Her response to Orhan's request is pivotal. Following Osman Bey's victory over Constantine, Alaeddin and Gonca's wedding takes place amidst celebrations, and Osman sends letters to all principalities. Osman Bey aims to unite all Turks under one flag, inviting the principalities to join him in establishing a state. The response of these principalities will shape the future of their unified cause.