As Hassan goes to his mother to take care of her, Samir comes to check on Hassan and his mother, and Jalhoum comes to offer the money he got from selling the goods he steals, and it becomes clear that he works for Samir.
Hassan dreams of his father telling him about the treasure he left him and its location in the khan (marketplace). Hassan asks Labib and the bird Sunbul to watch the place outside the khan until he searches for the treasure, which he actually finds, but he gets trapped in the basement.
As Samir searches for Hassan but does not find him, he thinks about trying to get rid of his mother as long as she is alone to get the treasure. Hassan remembers what his mother said about an emergency exit in the basement, so he searches for it, finds it, and comes out with the box.
Hassan asks Labib to take the box home. Hassan meets Ola and takes her to their house, where Ola tells them that her family is from the East and that she was kidnapped by one of the sailors and brought here. On the other hand, Samir asks Jalhoum to get rid of Hassan.
Hassan, with the help of Ola and Labib, tries to decipher the codes of the box. On the other hand, Hassan's father, Adnan, comes out of prison to join Hassan and his wife and save them from the evil of Samir and Jalhoum.
After Adnan escapes, a ghoul appears to him in the form of an old woman asking for help. As Ola manages to solve the puzzle of the key to the box, it turns out that it is in part of the basement. Hassan, Labib, and Ola go looking for the safe in the basement, and they find the safe, and inside it is the key to the box.
Hassan tells his mother about the belongings he found in his father's box. Jalhoum, with a plan from Samir, attacks the ship on which Hassan, Labib, and Ola are sailing. Adnan hides in the forest as he is afraid of the ghoul, however, he succeeds in catching him.
Hassan and those with him on the ship escape and survive the attack by Jalhoum and his followers. Labib tells Hassan about his suspicions about Ola, who decides to leave the ship after hearing their conversation. Samir kicks Hassan's mother out of her house.
Hassan and Labib reconcile with Ola, and due to weather turbulences, the trio faint. After regaining consciousness, they find an old man who tells them that they are on the Island of Oblivion, and Adnan succeeds in controlling the ghoul.
The old man tells Hassan and his friends that they must choose between arrows to get out of this land, so Labib chooses the Path of Return, Ola the Path of Regret, and Hassan the Path of Going without Return. As Adnan and the ghouls go to prison to rescue Ali, Jalhoum goes to the Island of Oblivion to search for Hassan, and he gets swallowed by a hurricane in the sea.
After surviving the hurricane, Jalhoum arrives at the Island of Oblivion and discovers that he has chosen the Path of Regret. The ghouls order Adnan and Ali to fight, and the winner shall be the king of the ghouls. Hassan and Ola, each go their separate ways.
Hassan finds a ring in a bag that belonged to his father. After wearing it, the old man appears to him, and Hassan has to choose again between the arrows, so he chooses the Land of Stones. Adnan and Ali implement their plan and escape from the ghouls and their rule.
The King of the Seas imprisons his daughter Darine as she refuses to live with him because of her passion to reach Hassan to gain knowledge, and her sister breaks her out. Hassan decides to go to the princess's palace as described in the book his father left him.
Darine asks the witch to transform her into a human. Hassan meets Ola and Labib again after the battle of the dragons and they meet Princess Sherifa. The old man tells them that they must remove the curse of the Land of Stones from the king. Hassan puts the jewel in the crown to transform the stone statue into a human king.
As the king offers Hassan to live with him and help him take care of the kingdom's affairs, the king's men discover that the princess's cure lies in the Kadupul flower found in the Amanus Mountains. Hassan volunteers to bring the flower, and Ola and Labib remind him that the main reason for his trip was to search for his father.
As Jalhoum arrives at the Dragon Castle and finds a precious jewel, the ship's men find Adnan and Ali and head off towards their homeland. Hassan's mother is attacked by a whale and is captured in a cave. A man from the palace attacks Hassan, Labib, and Ola, however, the latter confronts him and is injured.
Jalhoum finds Jaafar, the king's minister, taming a dragon in the castle, however, Jaafar asks the dragon to fly and kill Hassan. Hassan, Labib, and Ola board the ship heading to the Amanus Mountains, but the ship’s men find them.
Jaafar begins to doubt Hassan's integrity before the king and points out that he is an unreliable person, who is wanted by justice in his country. Jaafar invites Jalhoum to appear before the king to prove the validity of his claims about Hassan.
After the parrots guide Hassan's mother outside the cave and she goes out to the beach, Adnan finds her, and they are reunited. Hassan apologizes to Labib and Maria (Ola) for not listening to what they said about the difficulty of the trip. Maria tells them her story and the reasons for pretending to be Ola.
Adnan takes revenge on Samir for what he did to him and his family. Hassan, Labib, and Ola (Maria) find themselves in a place full of gold and treasures. Hassan turns to his father's book for advice on what they should do. As they start collecting gold, a gold snake appears to them.
Adnan and his wife begin their sea voyage to search for Hassan. Hassan finds in his father's book a way out of the cave by using the magic carpet, but they have to search for a hair that belongs to a princess. Princess Sherifa discovers Jaafar and Jalhoum's plan to control Hassan and rule her father's kingdom.
Hassan and his companions succeed in getting out of the cave using the magic carpet. The King of the Seas asks the witch to bring his wife and daughter back, and he also asks his daughter Sirin to tell all the servants of the Sea Kingdom that he wants to prevent humans from passing through this area.
After Adnan and his wife try to reach the Island of Oblivion, they face strong hurricanes sent by the King of the Seas, and they end up in the Land of the Ghouls, whose king orders their imprisonment. Hassan and his friends arrive at the place of the flower, but they are exposed to a snow storm that keeps them apart.
Princess Sherifa learns that Jaafar is behind the frost storm that struck Hassan and his friends, and that she had a sister, whom Jaafar exiled in the frosty desert. Lady Frost appears to help Ola out of the well.
Lady Frost tells Ola that her real name is Yasmine and that she is the daughter of King Sharif. She also tells Ola how Jaafar caused her to be exiled. Hassan and Labib reunite with Ola. Princess Sherifa orders the destruction of the jewels that Jaafar uses in magic.
After breaking Jaafar's curse in the snowy desert, Hassan and his friends climb the mountain to get the flower. Hassan tames the dragon, flies with it to the top of the mountain, and takes the required flower. Hassan returns to the Land of Stones, where the king orders his imprisonment.
Princess Sherifa's condition improves. As Ola and Labib explain to the king how Jaafar and Jalhoum have harmed them, the king decides to punish them.
Hassan and his friends set off to continue the search for his father. During their journey at sea, Ola meets her sister Sirin. Meanwhile, the ghouls decide to drown Adnan in the hourglass, because of his attempt to escape from prison.
After Hassan and his friends go to the Land of the Ghouls, the ghouls catch and imprison Labib, and Ola and Hassan try to save him. The King of the Seas learns from Sirin that she has helped Ola and her friends reach the Land of the Ghouls, so he goes after her to protect her from its danger.
After Hassan and his friends leave the Land of the Ghouls. Ola’s father imprisons them, but Ola intervenes and they are released. Hassan and Labib return to their homeland and work in Hassan’s father’s shop, and Hassan writes his experience in a book.