- The Eternals are created by the Celestials to defend humanity from the Deviants. After a vicious battle, they defeat and exile the Deviants, then give up their powers and memories to live among humans.
- In the present, Dane Whitman (Kit Harington) discovers the ruins of the Eternals’ citadel and activates a beacon that awakens them. He is attacked by the Deviants and rescued by Sersi (Gemma Chan).
- The Eternals reunite and learn that the Deviants are searching for the “Tomb of the Gods”. Dane has the map, so the Eternals must protect him and count on his help to find it first.
- The Deviants were freed by rogue Eternal Gilgamesh (Don Lee). However, Sersi and Dane learn Gilgamesh is being mind-controlled by Druig (Barry Keoghan), who is the true traitor alongside Thena (Angelina Jolie).
- Thena secretly had a child with the leader of the Deviants, Kro, but the humans murdered him. She hates them ever since, and wants to reach the Tomb of the Gods to reclaim the power of the Celestials to destroy them.
- Sersi is divided between Dane and her old lover, Ikaris (Richard Madden), but ultimately chooses Dane. Ikaris has a close friendship with Makkari (Lauren Ridloff).
- Kingo (Kumail Nanjiani) befriends Dane and teaches him how to fight. Dane becomes the Black Knight in the final battle.
-Sprite (Lia McHugh) befriends Gilgamesh and convinces him to rejoin the Eternals.
- Phastos (Bryan Tyree Henry) is gay. Thena tries to convince him to join her and punish humans for their prejudice, but he refuses because he still has hope for humanity.
- In the end, the Celestials awaken and possess the leader of the Eternals, Ajak (Salma Hayek). They decide humanity must be destroyed before they become too powerful due to the mutations awakened by Thanos' snap. The Eternals stand against them, and Ajak sacrifices herself to stop them, and Ikaris becomes the new leader.
- In the present, Dane Whitman (Kit Harington) discovers the ruins of the Eternals’ citadel and activates a beacon that awakens them. He is attacked by the Deviants and rescued by Sersi (Gemma Chan).
- The Eternals reunite and learn that the Deviants are searching for the “Tomb of the Gods”. Dane has the map, so the Eternals must protect him and count on his help to find it first.
- The Deviants were freed by rogue Eternal Gilgamesh (Don Lee). However, Sersi and Dane learn Gilgamesh is being mind-controlled by Druig (Barry Keoghan), who is the true traitor alongside Thena (Angelina Jolie).
- Thena secretly had a child with the leader of the Deviants, Kro, but the humans murdered him. She hates them ever since, and wants to reach the Tomb of the Gods to reclaim the power of the Celestials to destroy them.
- Sersi is divided between Dane and her old lover, Ikaris (Richard Madden), but ultimately chooses Dane. Ikaris has a close friendship with Makkari (Lauren Ridloff).
- Kingo (Kumail Nanjiani) befriends Dane and teaches him how to fight. Dane becomes the Black Knight in the final battle.
-Sprite (Lia McHugh) befriends Gilgamesh and convinces him to rejoin the Eternals.
- Phastos (Bryan Tyree Henry) is gay. Thena tries to convince him to join her and punish humans for their prejudice, but he refuses because he still has hope for humanity.
- In the end, the Celestials awaken and possess the leader of the Eternals, Ajak (Salma Hayek). They decide humanity must be destroyed before they become too powerful due to the mutations awakened by Thanos' snap. The Eternals stand against them, and Ajak sacrifices herself to stop them, and Ikaris becomes the new leader.
