In the inaugural episode of "Echoes of The Past," viewers are immediately plunged into the tumultuous waters of betrayal, grief, and the intricate machinations of a family's dark secrets. Set in 2007, the narrative unfolds with a group of friends embarking on a seemingly innocent scuba diving expedition. Among them, Ali and Nadia, whose relationship is fraught with tension, engage in a heated argument. Nadia's plea for Ali to "be a man" sets the tone for the tragic events that follow. As the group descends into the depths of the ocean, a seemingly minor detail—a hole in Nadia's oxygen tank—becomes a fatal flaw. Deprived of oxygen, Nadia's life slips away before her friends can reach her. Her brother, Yehia, is devastated and holds Ali responsible for her death.
However, the plot takes a sinister turn when Yehia is arrested, despite Ali's culpability. Fifteen years later, Yehia is released, only to find himself under the watchful eyes of two mysterious men. His friend Fatla, who picks him up, fills him in on the developments concerning Ali and Mona, Ali's sister. Yehia returns to his home to discover a suspicious bag filled with money and a sonogram, which triggers a flashback revealing Ali's father, Yassin, a rising politician, manipulating the situation to protect his family's reputation.
Yassin coerces Yehia into taking the blame for Nadia's death, promising financial support and care for Yehia's sick mother. Despite his friend Sherif's attempts to dissuade him, Yehia agrees to the arrangement. Yassin hires Mahfouz, a lawyer who assures Yehia of a mere one-year sentence for negligence. However, during the trial, the charges are unexpectedly upgraded to manslaughter due to claims that the oxygen tank was tampered with. Mahfouz, fearing Yassin's wrath, prevents Yehia from revealing the truth about Ali's involvement.
Fast forward to the present, Yehia remains in hiding for a month, evading the thugs sent by Yassin. In a daring move, Yehia confronts Mahfouz, extracting the truth through torture. It is revealed that no one knows who tampered with the oxygen tank, but Yehia could have received a lighter sentence if the court had been aware of Nadia's pregnancy, potentially framing her death as an honor killing. Yassin, however, needed Yehia to remain in prison to shield Ali from punishment, leading to the bribery of the coroner. Yehia's grief deepens as he learns of his mother's death from sorrow, fueling his desire for vengeance.
His first act of retribution is the murder of Mahfouz. Yehia sends a chilling message to Yassin and Ali by delivering a photo of Mahfouz's corpse. The father and son are left in shock, prompting Yassin to decide to eliminate Yehia once and for all. Meanwhile, Fatla introduces Yehia to Maldini, a worker at Yassin's factory, who agrees to act as a mole. As Yassin's thugs head to Yehia's house with lethal intent, they are met with a cunning trap. A tape recorder playing in Yehia's absence triggers a bomb, resulting in their demise.
The episode concludes with Yehia observing the aftermath from a safe distance, his resolve hardened. He moves into a hotel, contemplating his next moves in a quest for justice that has only just begun. "Echoes of The Past" sets the stage for a gripping tale of revenge, deception, and the lengths one man will go to uncover the truth and avenge his family.