In the vast expanse of time, a group of extraordinary beings known as the Eternals has been quietly existing on Earth for millennia. They possess abilities that defy human comprehension, and their existence has been shrouded in mystery. Ikaris, Ajak, Sersi, Makkari, Gilgamesh, Thena, Sprite, and Phastos are just a few of these enigmatic figures who have witnessed the rise and fall of civilizations. As the Eternal, Ajak, meets an untimely demise, the delicate balance between their secrecy and humanity's ignorance is disrupted. This sudden loss sparks a chain reaction, compelling the remaining Eternals to rekindle old bonds and face the consequences of their prolonged presence on Earth. The Eternals' leader, Sersi, alongside her companions, must navigate the complexities of their ancient past while confronting the present. With Ajak's passing, the door is opened for new secrets to emerge, threatening the very fabric of human history. As they delve deeper into the mysteries surrounding Ajak's demise, the Eternals are forced to confront their own existence and the true nature of their eternal lives. Throughout their journey, the Eternals must contend with external forces that seek to exploit their powers. The enigmatic gem known as Uranos holds the key to unlocking the secrets of the past, while the Deviants – a rival group of Eternals – pose a formidable threat to humanity and the Eternals themselves. As Sersi and her companions navigate this treacherous landscape, they must confront their own identities and the true purpose of their existence. What began as a quest for answers soon blossoms into a battle for the very survival of human civilization.