Plot

A mysterious force knocks the moon from its orbit and sends it hurtling on a collision course toward earth.

An unknown force knocks the Moon from its orbit and sends it on a collision course with Earth. Former astronaut Jocinda Fowler is convinced she knows the key to saving humanity - but only a disgraced former lover and an outsider believe her.—Centropolis Entertainment

"The world stands on the brink of annihilation when a mysterious force knocks the Moon from its orbit and sends it hurtling on a collision course with Earth. With only weeks before impact, NASA executive Jocinda "Jo" Fowler teams up with a man from her past and a conspiracy theorist for an impossible mission into space to save humanity.—krmanirethnam

In 2011, astronauts Brian Harper (Patrick Wilson), Jocinda Fowler (Halle Berry), and newcomer Marcus are on a Space Shuttle mission to repair a satellite. Suddenly, a mysterious Black Swarm attacks the orbiter, killing Marcus and incapacitating Fowler before Harper can re-enter the shuttle. Although he is initially hailed as a hero for successfully returning the crippled shuttle to Earth (without any functioning on-board electronics), Harper tries to tell his story, which is dismissed by NASA. After an eighteen-month-long investigation, human error is blamed for the incident, and Harper's account remains widely disbelieved. When Fowler fails to defend him during the hearing, Harper is fired from NASA.

Harper gets divorced from his wife Brenda, who gets custody of their son Sonny. Brenda remarries Tom, who is a Lexus dealer and rich. Ten years later, conspiracy theorist K.C. Houseman (John Bradley), who believes the Moon is an artificial mega-structure, secretly uses time on a research telescope and discovers that the orbit of the Moon is now veering closer to Earth. He attempts to share his findings with NASA but is unsuccessful in his efforts. He then turns to Harper, who dismisses him, leading Houseman to go public on social media with his discovery.

NASA independently discovers the anomaly and mounts a Moon mission using an SLS Block 2 spacecraft to investigate the abnormality. The same alien Swarm that attacked Harper's shuttle a decade earlier reappears, killing all three lunar astronauts after they drop a probe into a kilometers-deep artificial shaft that has opened up on the Moon's surface.

Meanwhile Sonny is arrested for drunk driving and Harper is unable to get him out of Jail. Tom promises to use his money and influence to have Sonny out of Jail before the weekend is out. Harper realizes that Houseman was telling the truth and finds him at his house. They jointly survive a tidal surge that takes out the entire west coast.

As the lunar orbit continues to deteriorate, the Moon falls closer and closer to Earth, causing cataclysmic disasters such as tsunamis, gravitational abnormalities, and atmospheric dissipation. Fowler, now the deputy director of NASA (Albert Hutchings (Stephen Bogaert), NASA's Director who turns over his position to Fowler at the last minute before the Moon's impact), learns (from Holdenfield (Donald Sutherland), a former NASA official who found out about the dark-side of the Moon mystery that occurred during Apollo 11 mission) that Apollo 11 had discovered lunar surface abnormalities during its historic landing and that a two-minute radio blackout was meant to conceal how the Moon resonated strongly when the spacecraft's fuel tanks were jettisoned, hitting the lunar surface, suggesting that it had a hollow interior. she accesses the Harper hearing files and finds that Harper was telling the truth.

A military program code-named ZX7 had created an EMP device in an attempt to kill the Swarm but was abandoned for budgetary reasons. Fowler orders the EMP device brought out of storage and brings the retired Space Shuttle Endeavour out of its museum to serve the new mission. Fowler has Harper and Houseman picked up from their location to help serve the mission. Harper agrees to help, but wants Sonny released from jail in return.

The Shuttle loses one engine, and the mission is a no go. Fowler releases the entire team, but at the last-minute Harper, Houseman, and Fowler launch with the EMP (after Houseman points out that the moon is now closer and hence it will exert a gravitational pull on the shuttle, thereby requiring less power to get into orbit), narrowly escaping to orbit as a gigantic tsunami wave destroys Vandenberg Space Force Base. Harper deploys a probe with an EMP, but the swarm goes for the shuttle instead. Harper realizes that the swarm goes for a combo of organic matter and electronics. They need a new strategy to defeat the swarm. Harper wards it off by shutting down all electronics inside the shuttle, in time.

As the crew enters the interior of the Moon, they discover that the Swarm is siphoning off energy generated by a white dwarf located at the center of the Moon, causing the artificial mega-structure's orbit to destabilize as its power source is depleted. Harper learns that the mega-structure was constructed by the ancient ancestors of humanity, who were more technologically advanced than their present-day descendants. The Moon was constructed billions of years in the past as a space ark to repopulate humanity, which was being hunted by a rogue artificial intelligence that grew too strong. The Swarm on the Moon is one of those malicious AIs, which responds to electronic activity in the presence of any organic life. The ancestors receded to a hidden part of their galaxy and started constructing arks to seed life in other parts of the Universe. They were only able to complete one ark before they were destroyed by the malicious AI. This lone ark entered our solar system, sparked the creation of the sun and the planets and then took a protective orbit around the Earth and seeded life. The benign AI inside the ark guides Harper and gives him a plan to destroy the malicious AI. Harper lures the malicious AI away from the core and prepares the EMP for detonation.

As the Moon continues to approach the Earth, the President of the United States gives the Chairman of the Joint Chiefs of Staff, General Jenkins, orders to launch a nuclear strike at the Moon. However, the Air Force Chief of Staff, General Doug Davidson (Eme Ikwuakor), refuses to carry out the strike order, so he can save the lives of his ex-wife (Fowler), as well as both Harper and Houseman while sacrificing his own life in the process.

Meanwhile, Harper's son, Sonny (Charlie Plummer), escorts Fowler's son, Jimmy, and their nanny, Michelle (Kelly Yu), in an attempt to reach Davidson's military bunker in the Colorado mountains. They reach Aspen and reunite with Harper's ex-wife and Sonny's mom, Brenda (Carolina Bartczak), as well as his step-family Tom Lopez (Michael Peña), Brenda's husband. But they are caught in the multiple disasters caused by the rapid destruction wrought by the near proximity of the Moon. As the group makes their way towards the bunker, they fight off other survivors and increasingly deadly natural disasters before reaching the safety of a deep mountain tunnel. Brenda's husband, Tom, sacrifices himself to save his youngest daughter, suffocating as the Moon strips away the localized atmosphere by its gravitational pull during a close by orbital pass.

Houseman uses the EMP device and their lunar module to lure the Swarm away from their spacecraft before detonating the device. He does so, knowing he will die, while obliterating the AI swarm, allowing Fowler and Harper to escape to the now nearby Earth. With its power and systems restored, the Moon structure begins to return to its regular orbit, bringing an end to all the destruction. Fowler and Harper successfully land their spacecraft in Colorado and are eventually reunited with Sonny, Jimmy, Michelle, and Brenda.

The Moon's operating system, itself an AI being created by humanity's ancient ancestors, reveals that it stored a copy of Houseman's consciousness as he sacrificed himself. Appearing to the reconstructed Houseman as his mother and cat, Fuzz Aldrin, the AI projection remarks that they now need to get to work on repairing the massive destruction wrought upon the Earth.