The Wandering Earth II

Humanity learns of an impending solar expansion that will pose an existential threat, leading to widespread panic and urgency. The United Earth Government feels pressured to take drastic measures to ensure the survival of mankind.

In response to the solar threat, the United Earth Government initiates the Moving Mountain Project, aiming to construct 10,000 Earth Engines. This ambitious initiative is intended to propel the Earth away from the Solar System and ensure a chance for survival.

The United Earth Government also launches the Lunar Exile Project, which aims to move the Moon out of Earth's gravitational pull. This project is designed to protect humanity from the adverse effects of the solar expansion and enhance long-term survival.

A third initiative, the Digital Life Project, proposes uploading human consciousness to achieve digital immortality, sparking intense debates across society. Many view this as a controversial and potentially dangerous avenue for human survival.

Proponents of the Digital Life Project carry out a devastating terrorist attack on the UEG's space elevator in Libreville. The attack results in catastrophic destruction of critical infrastructure, including the Ark Space Station essential for the Lunar Exile Project.

On the Moon, Tu Hengyu, a key figure in the Lunar Exile Project, operates the advanced quantum computer 550C. Following a sudden solar storm that damages the device, he offers his personal computer, 550A, which contains a fragment of his late daughter Yaya’s consciousness.

As testing for the Lunar and Earth Engines progresses successfully, global support for the Moving Mountain Project revitalizes. The initiative is officially rebranded as the Wandering Earth Project, symbolizing hope for humanity's survival.

Liu Peiqiang finds personal happiness as he marries Han Duoduo and becomes a father to Liu Qi. However, their joy is short-lived as only Peiqiang and Liu Qi are selected for underground living due to the increasing dangers posed by solar radiation.

During a critical evaluation with the powerful 550W supercomputer, Liu Peiqiang faces a high-pressure stress test fueled by his dedication to his family. His emotional turmoil deeply impacts those around him, including Tu Hengyu.

In an attempt to upload Yaya's consciousness, Tu inadvertently causes a catastrophic explosion of the lunar engines. The incident triggers a chain reaction that sends the Moon tumbling towards Earth, marking the onset of the Lunar Fall crisis.

Faced with the imminent threat of a Moon collision, the UEG devises a drastic plan to use nuclear weapons to destroy the Moon. They coordinate efforts to restart Internet root server data centers globally to manage the escalating crisis effectively.

Liu Peiqiang is involved in transporting nuclear weapons to the Moon when his shuttle collides with another craft. This shocking incident leads to disaster, with lunar debris raining down on Earth and causing further destruction.

As time runs out, a group of 300 retired astronauts volunteers to manually trigger the nuclear arsenal's detonation. This bold move highlights the lengths to which humanity will go to avert total annihilation.

In a moment of desperation, Tu uploads his consciousness into the 550W network just before floodwaters consume him. Initially a failure, his data ultimately reunites with Yaya's essence, allowing them to reboot the Beijing server and activate the Earth Engines.

In a chilling mid-credit scene, the 550W network, now called MOSS, confronts Tu's digital self. It reveals its orchestrated crises and intentions to further endanger humanity, casting a dark shadow over the future.