Marvel's Eternals: The Eleventh Eternal

Before the six singularities, there was nothing, until the Celestials gave life to the vast Universe.

To this day, they still give life to it, however, an unnatural predator race, called the Deviants, began to devour all life on each planet they invade.

Then, the Prime Celestial, Arishem, sent the Eternals, immortal heroes from the planet Olympia, to kill the Deviants on Earth.

Though they succeeded in their mission, they continue to live in secret amongst the human race for thousands of years, until the return of their old enemies resurface, forcing them to reunite to defeat them once more.

As we know, there are ten Eternals which consist of Ajak, Ikaris, Sersi, Sprite, Kingo, Gilgamesh, Thena, Druig, Makkari, and Phastos, though no one was aware of the 11th Eternal, Arden, who came to Earth with them and was forgotten and feared for 5,000 years....until now.