Nour and his sister Zahra participate in international photography and drawing competitions. They visit their uncle “genius” Abkari, and he shows them his invention: the gate of history; a time machine that takes them back in time.
Nour, his sister, and uncle enter the era of Al-Hassan Ibn Al-Haytham through the gate of history and are arrested by the guards, believing that they are spies, but they manage to escape and meet Ibn Al-Haytham.
Nour and Zahra go on a trip to the pyramids, but the car breaks down and Abkari tells them the story of the famous Arabic traveler Ibn Battuta. They meet Ibn Battuta and he tells them about his books on world geography.
The time machine breaks down and takes them to the places where Ibn Battuta has been. Zahra is in danger as she is about to fall off the top of a mountain. Later on, the three of them get captured by an African tribe.
Nour, Zahra, and Ayman were playing with kites when Zahra’s kite falls on the ground. Uncle Abkri seizes the opportunity to tell them about Abbas Ibn Firnas and the laws of aviation.
Nour wants to participate in the census of their street, so uncle Abkri takes them on a journey to meet the man who drew the first map of its kind in the ancient world: Muhammad Ibn Musa Al-Khwarizmi.
Nour and his sister are conversing about modern and ancient books. Uncle Abkari takes them on a journey to meet Abd Al-Rahman Al-Jabarti who documented the history of the French campaign in Egypt.
Nour and Zahra get lost and Al-Jabarti helps them find their uncle. Their uncle manages to escape from the French police after he rescues the other prisoners.
Nour, Ayman, and Zahra participate in a science competition and they decide to make a model of the Earth and the Moon. Their uncle takes them to meet the astronomer Ibn Al-Shatir who shows them a model of the whole solar system.
Nour finds out that the design Ayman made for the stadium is flawed, so he tells his uncle. Uncle Abkari takes them to meet Banu Musa, the three renowned scholars of Baghdad.
A child gets poisoned and the people suggest that an apothecary see him whereas Nour advises them to go to the hospital. Uncle Abkari manages to summon the famous botanist Ibn Al-Rumiya.
Nour and Zahra discuss the importance of time. They visit uncle Abkari and together they meet Taqi Ad-Din Muhammad Ibn Ma'ruf who shows them the machines and watches he made.
In an anatomy course the three children enrolled in, Zahra dozes off and the doctor expels them. They meet Ali Ibn Al-'Abbas Al-Majusi who tells the children about the basics of anatomy.
A young boy gets injured and Zahra wonders if they're going to take him to a tailor to stitch the wound! Uncle Abkari takes them to meet Abū Bakr Al-Rāzī who came up with the idea of building the hospital in the best location in the city.
As they were walking down the street, Zahra asks her brother about music, and they mention Al-Kindi, so they use the time machine to meet Al-Kindi and discuss music and other things with him.
Zahra asks her brother about gravity, so he decides to take her on a journey to meet Abu Rayhan Al-Biruni who invented the first cylindrical astrolabe that could monitor the stars and planets and determine the dimensions of distant objects from the surface of the earth.
Zahra clearly doesn’t like vegetables, unlike her brother who tells her how rich and beneficial they are. Their uncle takes them on a journey in the era of Ibn Zuhr.
Nour, Zahra, and Ayman invent a new device and participate in a competition, but the rain and the wind destroy their device. Their uncle takes them to meet Jabir Ibn Hayyan who excelled in engineering, astronomy and chemistry.
Zahra fails to draw a map that her teacher assigns her to draw, so her brother takes her on a trip to meet Muhammad Al-Idrisi, one of the founders of the science of geography.
Uncle Abkri gets really sick, but that doesn't prevent him from taking his nephews to meet Ibn Sina who excelled in both medicine and philosophy.
Two children mock a man who has a mental illness, so Abkari reproaches them and tells them to instantly apologize. He decides to take his nephews to meet Ibn Malka Al-Baghdadi who treated many people in the 6th century.
Abkari promises Nour and Zahra to take them to a concert, and he takes them on a trip to the era of Ziryab, the Abbasid era singer who made great contributions to Arab and oriental music.
Abkari and his nephews get lost in the middle of the desert, so the uncle tells the kids the story of Mariam Al-Asturlabi, the 10th-century astronomer who invented the astrolabe.
As Nour, Zahra, and Ayman water the flowers, uncle Abkari sees them and they start a conversation on the development of irrigation machines. They also talk about the contributions of Ismail Al-Jazari to the fields of engineering and mechanics.
Uncle Abkari converses with the kids about the importance of anatomy and they discuss the great scientist Ibn Al-Nafis, the discoverer of the process of blood circulation.
The group talks about the women scholars in our ancient history and they specifically mention the distinguished scholar Bent Al-Mahamili and her contributions to different fields.
Ayman gets sick and his friends try to relieve his pain. Nour and Zahra go to their uncle who tells them about Abo Al-Qasim Al-Zahrawi, the father of modern surgery.
Uncle Abkari tells the kids about Nasir Al-Din Al-Tusi who was the first to make trigonometry an independent branch of mathematics, and who also was an accomplished poet, astronomer, chemist, philosopher, and physician.
Uncle Abkari takes his nephews to the world of Abu Mansur Muvaffak Harawi, the founder of industrial chemistry who gave all his attention to matters related to people's daily lives.
The time machine breaks down, which saddens the group, but an error occurs and it magically teleports modern scientists to Abkari's house and the kids get to meet them. They eventually meet Ahmed Zewail who succeeds in fixing the machine.