Sultan, Tamer, Rushdi and Yasser are old friends who study medicine together. When a medical conference is subjected to a terrorist attack, they are suspected of being involved with a terrorist organization.
Accusations point to Sultan and Rushdi regarding the attack. Sultan and Rushdi decide to escape and Tamer remains in custody. Later on, it is evident that Vanya, the journalist, has willingly involved Sultan in the incident.
The police look for Rushdi and Sultan and receive an anonymous tip about their location. Huda decides to help Rushdi and Sultan escapes from the police.
Investigations show that Sultan is a law-abiding Saudi citizen, and Police Officer Nasser starts doubting that he is responsible for the attack. When viewing the cameras' recordings of the conference, Sultan appears to be innocent.
Huda gets called in for questioning by the police. The terrorist organization leader is angered by the failure of his plan to get Sultan arrested. Rushdi decides to flee the country.
The police keep Tamer and Yasser under surveillance to know the whereabouts of Rushdi and Sultan. Then, police forces are sent to that place and the situation gets complicated. Police officer Nasser is sent to Serbia to follow up on the case.
Sultan's father arrives in Serbia and Huda receives him in her home. Huda, Sobhi and Tamer get arrested, interrogated and believed to be conspiring with a terrorist group. The investigations put Huda in a tough situation, where she is to either give them Sultan or involve her parents in the case.
Sultan's father and Rushdi's brother go with Huda to visit them. Colonel Nasser has them under surveillance. The police contact Vanya the journalist regarding an interview with Sultan that was published right before the attack. Huda asks Vanya for help to prove Sultan's innocence.
The Mafia find out about the video in Sultan's possession, which he wants to use to prove his innocence. Rushdi and Sultan discover that they are under surveillance and Rushdi decides to leave Sultan and run away.
Radwan recalls the murder of his wife and daughter and how he got involved with the terrorists against his will. Radwan goes to Huda's house and threatens her family in order to know where Sultan is. Huda is kidnapped and a video of her is sent to Sultan to blackmail him.
Colonel Nasser is able to rescue Huda and Sultan with the help of Natalie but he gets injured during the operation. Nasser's wife suffers complications during the delivery of her child. The Serbian police follow up on the case. Rushdi, after running away, finds himself in a refugee camp.
Radwan insists on delivering Rushdi to the Mafia leader himself. Huda's father refuses her attachment to Sultan. Huda does not listen to her father and tells Sultan that she plans not to lose him. Nasser learns about his wife's death. The Serbian police continues investigating.
Sultan convinces Huda to go to her family. Tamer and Yasser are kidnapped. Sultan receives a torture video of Rushdi and Tamer and is threatened not to tell anyone.
Sultan is kidnapped and threatened to admit that he was the one behind the terrorist bombing and that he was with ISIS. Huda goes to visit Sultan and learns what's happened. Nasser investigates Tamer's kidnapping.
After Sultan's arrest, a conference is held where his confessions are announced to the public. Nasser tries to convince the Saudi Ambassador that something does not add up. Huda goes to Vanya to ask for help. Radwan fails to prove himself in front of the Duke.
After completing the weapon operation, the Duke gives Radwan to Javier. Radwan swears to kill Javier. Natalie records the operation. Nasser goes to help Huda and Natalie. Huda cooperates with Yovan and Milosh after they are suspended from work, and suspicions about the General and Sergen arise.
Nasser and Natalie go to Javier's and take him hostage. Radwan escapes and Nasser is unable to catch him. Sultan is detained. Nasser goes with Huda to meet with Milosh and Yovan.
Sultan has a public trial. Javier is given to the police. Sam betrays Natalie and gives her to the Mafia, who he works for. The Mafia prepares for Natalie's execution that will be aired live.
Nasser rescues Natalie from the Mafia. Sultan is to be jailed for life. The General tells him about the murders of Tamer and Yasser. Plans for the murder of Sultan are made and the Saudi embassy is informed. Sultan appears between Nasser and Huda due to Nasser, Yovan, and Milosh's successful plan.
After rescuing Sultan, an attempt to rescue Rushdi is made. Nasser wants to know the secret behind Natalie and threatens her to tell him what she knows. Her friend tells her about David.
Natalie is shocked to learn about David. Attempts to rescue Clara and Rushdi are made. Rushdi receives a letter. Radwan plans for revenge.
Radwan and Nasser try to help Rushdi escape at the same time. Radwan gets shot and loses consciousness. Sultan attempts to save him. A girl is kidnapped to find Radwan. David is still looking for Clara.
When Radwan gains consciousness and sees everyone, he starts shouting. He learns that Sultan is the one who saved him. Robert tries to threaten Radwan with the child. Radwan tells Sultan and Huda how he met Arez.
Radwan gives Sultan a video as proof of his innocence. Sultan goes with Radwan to rescue the girl but she escapes. Natalie is kidnapped.
Radwan gets revenge from his wife and child's killer. Nasser sympathizes with him. Natalie and Nina are rescued. Sharik escapes and with him Radwan. Suspicions fall on Elish.
Radwan escapes from Sharik and Nasser suspects his death. Sharik looks for Natalie and plans to get rid of her. Sharik has a new mission.
The search for Radwan continues. Sharik tries to reach Natalie. Ariz's life is in danger after the video is distributed. Sheikh Faisal is targeted.
Sheikha Haya asks to sit with Nasser and all those who participated in the case and tells them the whole story. Elish commits suicide and Yovan has a life-threatening injury. The Police fail to locate the bag.
Vanya says her goodbyes to Yovan as he passes away. The Police catch Robert. Sharik finds Natalie and goes to kill her but decides against it.
Nanush agrees with Radwan to get rid of the Don. Radwan gives him to the police. Sultan and Rushdi are set free. Sharik has an evil plan.