The cardiologist, Dr. Mariam Fou’ad, operates on a young child. After Younis and Saber rob an apartment, Younis keeps a ring when they give the loot to master Abbas. Sheikh No’man tells Sheikh Youssef that he is going to look for his family. Nahed wants to open a hospital and enlists Mariam’s help.
After No'man dies in a car accident, Youssef identifies the two young men who were driving the car. Nahed wants her son Sherif to manage the hospital with Fawzy Harb, his fiancée Karima's father. When Younis is arrested, his fiancée Samia claims that he was with her when the robbery took place.
Nahed asks Mariam to be her partner in the new project. Youssef goes looking for his family in Cairo and discovers that Mariam and Younis are his siblings. Hagar tells Mariam that she had to distance herself from people after she and her deceased husband adopted her. Younis plans a robbery.
When Magdy beats his wife Kawthar, Younis fights with him. Master Abbas tells Youssef that Younis left home when he was young before the house collapsed on his family. Mariam treats Elham after the latter suffers a health crisis. Nahed wants Dr. Adel to be her partner in the hospital.
Youssef is afraid to tell Younis that he is his brother as he continues to look for Mariam. After Sherif meets Mariam at the hospital while visiting Elham, he grows annoyed with his fiancée Karima's jealously. It turns out that No'man has left half his fortune to Youssef, which upsets his son Malek.
Fady tries to get closer to Sarah. Younis takes Samia to see their marriage nest. Youssef discovers that Mariam has a death certificate and her adoptive parents got a new birth certificate for her under the name Mariam. When Youssef goes to meet Mariam, she kicks him out, thinking he is a swindler.
Despite being married to Magdy, Kawthar still has feelings for Younis. Younis tells Youssef his story and how the house collapsed on his family. Saber meets Rasha to find out more information about Nadia, the owner of the house that he and Younis are planning to rob. Sherif and Mariam grow close.
When Mariam passes out, her colleague Sameh insists that she must seek treatment. Col. Essam stresses that Youssef must not divulge his whereabouts out of fear for his life. When Malek wishes to sell his father's stationery store, his mother insists to give Youssef his share in No'man's inheritance.
When Mariam goes to Youssef's house to apologize, he tells her about their brother Younis and how he is trying to help him without revealing their familial connection. Sherif wants to break things off with Karima as he meets Mariam again.
Younis plans to leave the country until he discovers that Youssef is his brother. Capt. Farouk complains about the girls renting Hagar's apartment. It's known that Farouk hates Mariam because his son Ramy loves her. Sherif breaks up with Karima. Mariam and Dr. Adel partner up with Fawzy and Nahed.
Younis watches Mariam from a distance to check up on her. Bensa and Hamasa, who caused No'man's death, look for Youssef. The doctor asks Mariam to rest to alleviate the nerve inflammation. Mariam tells Hagar the truth about her health condition.
Kawthar loses her baby after Magdy beats her. Master Abbas asks Younis to rob a villa to cover the cost of his daughter's surgery. Mariam signs a contract for the new hospital. Youssef asks Mariam to help their brother Younis, but she refuses to have any connection with a criminal.
Hagar blames Farouk for his cruelty that made his son Ramy leave the country and Mariam behind. Sarah gets a chance to go to an exhibit abroad, but her mother Elham refuses to let her go. Sa'eid, who has been supplying Mariam with narcotics, blackmails her and asks for half a million pounds.
As Younis and Saber rob the villa's safe, Younis is arrested. Mariam pays for Kawthar's surgery. Youssef is beaten by Bensa and Hamasa. A controversy erupts around the donation campaign launched for the hospital. As Mariam pays Sa'eid the money for the video, the police arrive.
As Sa'eid escapes, Mariam tells the detective that he steals prescriptions to get drugs. Mariam sends a lawyer to defend Younis. When Fawzy discovers that Mariam is not Hagar's biological daughter, he suggests to have Dr. Sameh run the hospital with him instead of Mariam.
After Mariam is arrested when the narcotics are found in her apartment, it's revealed that Fawzy is behind what happened to her. Mariam promises to help Younis and Youssef. Hagar confronts Mariam about her insistence to take shots for her nerve inflammation, which angers Mariam.
Fawzy offers to buy Marwan's villa. It's revealed that the safe that Younis robbed had partnership contracts between Fawzy and Marwan. Malek insists on selling his father's stationary store. The doctor asks Mariam to start her treatment, but she passes out after getting an injection.
As Youssef saves Mariam, she asks him to move in with her. Younis searches for Magdy in Al-Shabrawy's workshop, only to discover that Magdy has robbed the workshop's owner. Mariam decides to stand up to Fawzy.
It's revealed that Salem's brother illegally sold their land to Fawzy. The police arrest Master Abbas after they find a stolen statue at his workshop. Younis discovers that Madgy is blackmailing Radwa, whom he implicated in suspicious affairs.
It's revealed that Fawzy pressured Ramy to leave the country when the latter started to feel like a failure in the face of Mariam's success. Saber admits to his father that he stole the statue from the villa and hid it in the workshop.
After Emad asks Youssra to have an abortion, he gets hit with a car. Younis locates Magdy. Fady visits Sarah's father, which angers Elham.
Elham suspects that Sarah is not her daughter. Magdy tells Younis that he didn't kill Nadia, the villa's owner. Mariam and Youssef try to locate their uncle, Hareis. It's revealed that Dr. Adel was the manager of the hospital that Salem and his wife were rushed to after the house collapsed on them.
When it's revealed that Mariam's mother, Fatma, was pregnant prior to her death, Mariam tries to figure out what happened to the baby. Younis forces Magdy to divorce Kawthar. Sherif wants to dissolve his partnership with Fawzy. Ramy leaves Mariam a letter to tell her he didn't leave because of her.
It's revealed that Marwan sold his villa to Fawzy with all the antiques it had. Younis suspects that Fawzy is involved in the antiquities trade. Mariam confronts Sameh about his betrayal and his allying with Fawzy against her.
Bensa and Hamasa try to locate Youssef. Youssef and Raghda fall for each other. After Adel meets Fady, the latter asks to see Elham again. Younis and Mariam steal the contents of Fawzy Harb's safe.
Younis discovers that Fawzy Harb is actually their uncle, Haris Al-Barkouky. Youssef asks Younis to turn himself in to the police. The police search Fawzy's house. Marwan is interrogated about smuggling antiquities.
It's revealed that Hares caused the collapse of Salem's house by digging under the house to look for antiquities. Younis strikes a deal with Hares to give him and his siblings their father's land back in exchange for the antique he stole from him.
The nurse Rasha admits that she strangled Nadia to prevent her from exposing her theft. As Mariam and Younis find Sa'eid, they discover that they are too late as he has overdosed. Nahed tells Mariam to stay away from Sherif.
Right before her surgery, Adel reveals the truth about Sarah to his wife Elham. As Mariam is prevented from operating on Elham due to her suspension, Elham dies on the operating table.
Ramy returns from abroad and tells Farouk about his success and his family. Mariam recovers after going to rehab and confesses her love for Sherif. It's revealed that Sarah is the missing sister who Mariam, Younis, and Youssef have been looking for. Salem Al-Barkouky's children finally reunite.