Hakan and the Loyal Ones hatch a plan to gain Rüya's allegiance; Vizier demands Faysal's help in retrieving the last piece of the key.

The Oracle shares an ominous vision; Hakan visits the past; Zeynep overhears Vizier confronting Rüya about the key.

A mysterious symbol offers Hakan a clue as he hastens to uncover Vizier's identity, but his omnipresent foe stays a step ahead.

Nisan accompanies Hakan in his search for the key's missing piece; Vizier threatens to drive Hakan to the edge as a shocking truth emerges.

Galvanized by an ancient betrayal, Vizier turns all of Istanbul against Hakan in a fateful coup de main.

Back in the past, Hakan steals something from Vizier and sees a familiar face; Zeynep strives to prove her loyalty to the Immortals.

Amid a search for the potion in the past, Hakan overhears details of a plot against Vizier; the Oracle delivers a cryptic prophecy to Zeynep.

After deciphering Okhan's note, Hakan seeks to foil a scheme against the Sultan with unexpected consequences.

Faysal turns the tables on Vizier; trapped, Hakan gets an unlikely ally; Zeynep gains extraordinary powers.

Zeynep shows Hakan a vision of the future but hides a key detail; Vizier confronts Okhan and Faysal in search of the truth.

Hakan visits a healer who has a link to Harun's past; Faysal sets his scheme in motion as Hakan's talismanic powers fade.