Nour and his sister Zahra find a secret basement inside their late grandfather's library. The duo enlists the help of Abkry, who tells them that there is a laboratory in the basement with a time-controlling device and many impossible scientific properties.
Nour, Abkry and Zahra embark on a journey inside the mouth of Rakabi, after they have been reduced in size. The team succeeds in studying the human mouth during their journey before coming out and returning to their normal size.
Seif develops tonsillitis, and Nour and his team embark on a journey inside his body to try to cure it.
Nour and the team enter Julio's body after his illness. They discover that he has swallowed a rare coin belonging to Zahra, and the team succeeds in treating Julio.
After a visit to the Paleontological Museum, Nour and his team travel back in time to see the Egyptian dinosaur. Tyrannosaurus Rex attacks the team before escaping back in time.
Nour and the rest travel to space. The team learns about the planets of the solar system, the stars and moons that orbit around them.
Nour, Zahra and Abkry travel to the North Coast, and learn about the way to discover petroleum and use solar panels to generate energy. The team also witnesses a rare astronomical phenomenon.
Nour and the team travels to space to see the ozone layer. The team also visits the North Pole to learn more about global warming.
Zahra gets sick, so the team enters a patient's body to study viruses and microbes that infect the human body.
As they were assigned with a school research on the liver, Nour, and the team embark on a journey inside Aref's liver to learn about it.
As Zahra's plants wither, Abkry and Nour, take her on a journey through the world of plants to learn about it.
During a music session with friends, Nour and Zahra decide to go on a trip inside Seif's ear to see how he receives musical notes.
Nour and Zahra visit the father of their friend Amina in the hospital. Nour and his team decide to enter the father's body, specifically the kidneys, to find out the secret of his illness.
Nour and his team go on a trip with his grandfather's device to watch bees pollinate. Zarzur saves Zahra from a plant that sucks insects.
After Rakabi catches the flu, Nour and his team take a trip inside his nose to learn how the human body defends itself.
Nour and his team move using the machine inside the human stomach. The team learns about the worms that occupy the stomach and the diseases they cause inside the body.
Nour tries to get rid of the laziness that affects his academic level, and sets off on a space trip to see meteors and comets.
Rakabi suffer from a stroke and is taken to the hospital. Nour and his team go on a trip inside the body of their athletic neighbor, Hussam, to see the blood circulation and how clots are formed.
Nour and his team return inside Hussam's body. The team seeks to learn about the immune defense system, and how white blood cells confront diseases and microbes.
Zahra and Nour wonder how a person feels hot and cold things. Abkry takes them on a journey inside the human head to learn how the brain contributes to the sense of touch.
Nour is confused by writing an article about one of the stories of the prophets. Nour and his team go on a trip to Australia to see the world of ants closely. After their return, Nour decides to write the article about the story of the ants and the Prophet of God Solomon.
Nour and his team set out on a trip to Ethiopia to see the source of the Nile River. The team survives a crocodile attack before returning home.
Nour and his team go on a journey near Gamila's eye, and the team begins to learn about the retina and visual perception.
Gamila asks Zahra to donate her old clothes. Abkry takes Zahra and Nour on a journey to learn about the dangers of using plastic to the environment.
Seif is injured during a football match for the school team. Nour and the team travel to Seif's wound to treat it.
Abkry takes the team on a trip to San Andreas to find out how the lava comes out. Zahra likes the idea and decides to create a model of it for the school project.
After she refuses to eat honey, Abkry takes Zahra and Nour on a journey inside the cells of honey to learn about the stages of its formation and its benefits.
Confused about the nature of dolphins and whether they are pet or predatory, the team goes on a journey across the seas to see the world of dolphins.
Rakabi and his brother push Zahra to take an adventure inside Rakabi's nose to learn about the sense of smell and its ability to distinguish between different smells.
Abkry travels, while Nour and Zahra embark on a new adventure inside a drop of water. The duo learn how water evaporates and rises to the upper layers of the atmosphere.