Ghada surprises Khaled with a visit to his workplace at the nuclear reactor, which causes a large explosion. At the same time, Nour suffers from a nightmare of his parents’ tragic death in the reactor.
A coincidence brings Khaled and Nour together, and the latter decides to follow him to confirm his suspicions that he is his father. On the other hand, it becomes difficult for Khaled to gain the trust of his colleagues after the failure of the reactor experiment, and Nour takes Yasmine to visit Khaled after confirming his suspicions.
After constantly chasing him, Nour fails to convince Khaled that he is his son, and Badr suggests resorting to a DNA test to confirm Khaled's paternity and remove doubts.
The test sample matches and both Khaled and Nour are shocked. However, together they try to explain this strange phenomenon with the help of Yasmine.
Yasmine suggests to Khaled to go meet Helmy and Ashraf and confirm the presence of strange phenomena that the duo experienced after the experiment, and Nour gets to know his mother Ghada without revealing his identity to her.
Nour and Khaled visit Ashraf, who tells them that Khaled is still working with him in the reactor, and Khaled and Nour discover that the experiment led to the emergence of duplicate copies of themselves.
Ghada asks for a divorce because she doubts Khaled's actions. Khaled and Nour discover that the experiment caused Ashraf to have hallucinations, so they decide to search for the engineer Elmi to make sure that the experiment did not affect him.
Khaled and Nour are certain that the experiment had a negative impact on the mind of engineer Elmi, and Khaled and Nour go to visit Nour's adoptive parents to find out what happened when they adopted Nour.
As Nour visits Ghada and tries to explain to her what happened, Khaled, with Elmi's help, tries to prove the success of the experiment and restore his professional life.
As Ghada goes to visit Nour, Muhammad and Doria hide something dangerous about Nour. On the other hand, Badr tries to reach the orphanage where Nour was raised before adoption.
Nour, Khaled, and Badr visit the orphanage, but their visit is in vain, and the trio suspects Doria and Muhammad are hiding something important.
Ghada visits Nour in the studio and asks him to help her because she is suspicious of Khaled’s actions. Khaled agrees to have Nour, his young son, and Nour the elder undergo an experiment in simulating the memories of the duo, and Hilal and Elmi supervise the experiment.
Khaled discovers that Nour is watching him and confronts him and Ghada. During the experience, it becomes clear that Nour does not remember any of his old memories, and Badr is hiding something important about Nour.
Nour stays away from Khaled because of the false information Badr said about the latter. Yara tries to inform everyone of Badr's suspicious behavior, but no one believes her. Abdel-Jawad springs a surprise that turns the tables on Badr.
Badr's secret is revealed, and it turns out that after the explosion, Nour senior happens to be in the hospital in critical condition after a traffic accident, so Badr transfers cells from Nour's junior brain to Nour senior's to save him, which leads to an overlapping of memories. It becomes clear that Nour senior's real name is Rafiq, and the latter agrees with Khaled and wants to maintain their friendship.