The Fifth Vigilante

Before being killed during their protection mission for a diamond company in Angola, Kürşad entrusts his mother and sister to his friend Terekeme. After returning to İstanbul, Terekeme begins fulfilling the tasks assigned to him by the company.

Terekeme sets out for revenge after Kürşad’s mother is murdered and his sister is injured. As he pursues this quest, he uncovers crucial clues that lead him closer to those responsible.

After discovering the identity of the killer and eliminating many of his associates, the company begins to track down Terekeme and invites him to a new meeting.

As Terekeme seeks justice for the oppressed, Kalfa, the company's supervisor, conspires with Şehmuz to eliminate both Terekeme and Yusuf for their mutual benefit.

With the help of the Hacker, Terekeme hunts down Yusuf, turning his hiding place into a bloodbath and sabotaging Kalfa and Şehmuz's scheme.

Kalfa orders all the "Apprentices" in the company to eliminate Terekeme, sparing only Apprentice #01, who is assigned a separate, secret mission.

Terekeme rescues Kürşad's sister and narrowly escapes Kalfa's trap, continuing his relentless pursuit of Yusuf.

As Terekeme keeps Yusuf captive in a hidden location, Şehmuz plots to gain control of Yusuf, driven by his desire for the fortune Yusuf inherited from his mother.

Şehmuz arrives late at Yusuf’s place of detention, only to face a surprise, yet remains determined to continue his hunt to eliminate Terekeme.

Şehmuz is eliminated after his failed attempt to kill Terekeme. With the arrival of the company’s owner, justice is swiftly served as Kalfa is killed.