While the entire world watches the largest meteor shower in 10,000 years, a rogue asteroid, hidden by the meteor field, smashes into the moon in a tremendous explosion of rock and debris. Fragments from the asteroid, and even from the moon itself, penetrate Earth's atmosphere and make impact. Even though the initial damage is minimal, nerves are frayed throughout the planet. There is significant physical damage to the lunar surface, but experts quickly conclude there will be no lasting ramifications. Then strange anomalies begin to manifest themselves on Earth. It starts small - cell phone disruptions, unusual static charges and odd tidal behavior. The world's leading scientists, including Alex Kittner, Maddie Rhodes and Roland Emerson, begin piecing together evidence that suggests the moon's properties, and its orbit, may have been permanently altered. Their fears are realized when the anomalies increase to the point where the effect of "simulated" gravity is being manipulated by increased electromagnetic surges coming from the moon. People, cars and other objects are rendered momentarily weightless in random, isolated areas around the globe. Alex, Maddie, Roland and the rest of their team soon discover something far worse - the moon's new orbit has put it on a collision course with Earth! The world now has 39 days to stop it or Earth, and all of mankind, will perish. After a failed attempt by the United States to destroy the moon, our heroes bring all the countries of the world together in one last hope for humanity - an international mission to the moon itself where astronauts will attempt to reverse the magnetic effects and restore the moon to its original orbit. Alex, whose children are now missing after the latest rampage of anti-gravity, is emotionally torn as he must now join Roland and two other astronauts on the Earth saving mission into space. It is a race against time as the two celestial bodies are drawn closer and closer to impact, the world united, watching and praying, the survival of mankind in the balance.
- During a meteor shower said to be the most spectacular in 10,000 years, an asteroid hidden by the meteor field strikes the Moon. Fragments of the asteroid and of the Moon itself penetrate Earth's atmosphere and make impact. The initial damage is minimal, though significant physical damage to the lunar surface can be seen from Earth. Experts believe that the Moon has stabilized into a slightly closer orbit. Then strange anomalies begin to manifest themselves on Earth, including cell phone disruptions, unusual static discharges and odd tidal behavior. The world's leading scientists, including Alex Kittner, Maddie Rhodes, and Roland Emerson, begin piecing together evidence that suggests the moon's properties have been permanently altered because the asteroid that hit the Moon was actually a fragment of a brown dwarf; the fragment is highly magnetized and more massive than the Earth despite being only 19 kilometers across, and it is still inside the moon. When the Moon's new, more elliptical orbit brings it closer to Earth, electromagnetic surges begin affecting the surface, causing people, vehicles, and other objects to levitate at random, worldwide. Alex, Maddie, Roland and the rest of their team soon discover that the Moon's new orbit will cause it to collide with the Earth in 39 days, completely destroying the planet. After a failed attempt by the United States to destroy the Moon with nuclear weapons after not listening to the above scientists as it usually happens, the three scientists plan an international mission to the Moon, where astronauts must construct a device to magnetize the Moon's core, causing it to disgorge the embedded brown dwarf fragment, eliminating the magnetic effects and restoring the Moon to a stable orbit. Because of their unique expertise, Alex and Roland must join an American astronaut and a Russian cosmonaut on the mission, which is expected to be a one-way trip.
Roland's pregnant fiancée, Martine Altmann, was travelling across Germany on a train that levitated and derailed. She and an American, Bob Pierce, are able to lead the survivors to a military convoy, and Bob convinces the soldiers to allow Martine to ride to Roland's location. She and Roland are immediately married. Alex's children are left in the care of their late mother's father. When they attempt to drive cross-country to reunite with Alex, their car levitates and crashes. After a confrontation with a man hoarding resources at a convenience store, the children's grandfather suffers a fatal heart attack. The other man originally plans to leave alone, but has a change of heart and brings the children to Washington, DC. Alex is already in space, but he had asked Maddie, with whom he once had a romantic relationship, to make sure his children remained safe. He is able to tell his children "goodbye" over a video feed.
On the Moon, the electromagnetic machine is assembled. Roland and the astronaut, Courtney, travel in a rover to locate a fissure in the lunar surface. The rover crashes deep inside the fissure and Courtney falls to her death. Roland is unharmed but trapped inside the fissure and unable to rejoin the spacecraft. He demands that the cosmonaut, Sergei, launch the module so that he and Alex can be saved. The device is activated, causing a large explosion on the Moon, which kills Roland. The Moon splits in two as the brown dwarf fragment flies into the Sun. The orbit of the lunar debris is stable. Sergei and Alex make radio contact, revealing that they escaped the Moon before the explosion, much to the surprise and excitement to Maddie and Alex's kids. Back on Earth, Alex is reunited with his children and with Maddie. Film ends with Alex and Maddie staring briefly at the now fragmented moon before getting into an SUV together.