After the shocking revelation of the true purpose of the Eternals and the impending emergence of the Celestials in part one, the remaining Eternals find themselves divided and grappling with their identities and responsibilities.

1. Fragmented Team: The Eternals, shattered by the betrayal of Ajax and the revelation of their true mission, have disbanded. Some Eternals, led by Ikaris, believe they should fulfill their original purpose and aid the Celestials in their plan to harvest energy from planets. Others, including Sersi and Kingo, question the moral implications of this path and seek a different solution.
2. Rediscovering Their Purpose: Sersi and Kingo embark on a journey to reconnect with the ancient Eternals who have been dormant for centuries. They hope to learn more about their origins, the history of the Celestials, and find a way to prevent the catastrophic consequences of the Celestial emergence.
3. Ancient Guardians: Sersi and Kingo succeed in awakening Gilgamesh, the strongest of the Eternals, and other dormant members of their kind. Together, they form a new alliance dedicated to protecting Earth and its inhabitants from the impending Celestial threat.
4. Unveiling Hidden Truths: As the Eternals delve deeper into their past, they uncover secrets that challenge their understanding of their purpose and the nature of the Celestials. They learn of a forgotten history and realize that their role in the universe may not be as simple as they once believed.
5. Celestial Awakening: Meanwhile, the Celestials begin to exert their influence on Earth, causing widespread disruptions and anomalies. Natural disasters and energy surges plague the planet, prompting the Eternals to take action.
6. Internal Struggles and Reconciliation: The divided Eternals must confront their conflicting beliefs and find common ground to unite against the Celestials. Ikaris, torn between his loyalty to their original mission and his growing doubts, faces a personal crisis that will test his resolve.
7. The Ultimate Sacrifice: In a climactic battle against the Celestials, the Eternals must make difficult choices. Some are prepared to sacrifice themselves to protect humanity and defy the Celestial plan. Their combined powers, ancient wisdom, and newfound unity become their greatest weapon against the overwhelming forces of the Celestials.
8. New Beginnings: In the aftermath of the battle, the Eternals’ actions have far-reaching consequences. Their heroic deeds inspire a new generation of heroes, while the remnants of their ancient civilization are left to rebuild and redefine their purpose in a changed world.

Note: This scenario is purely fictional and not based on any official information about the second part of “The Eternals” movie. It is a creative exploration of what could happen in a hypothetical sequel based on the concepts and characters introduced in the first part.