Alienoid
Year: 2022
Runtime: 143 min
Language: Korean
Director: Dong-hun Choi
In 2022, a strange phenomenon occurs where aliens become trapped within human minds, monitored by powerful Guardians. Simultaneously, during Korea's Goryeo Dynasty, two sorcerers fiercely compete for the legendary Divine Blade, and a mysterious spacecraft unexpectedly appears. As time itself begins to fracture, these seemingly unrelated events converge, creating a thrilling adventure that blends futuristic technology with historical fantasy and action.
Warning: spoilers below!
Haven’t seen Alienoid yet? This summary contains major spoilers. Bookmark the page, watch the movie, and come back for the full breakdown. If you're ready, scroll on and relive the story!
Alienoid (2022) – Full Plot Summary & Ending Explained
Read the complete plot breakdown of Alienoid (2022), including all key story events, major twists, and the ending explained in detail. Discover what really happened—and what it all means.
As the story unfolds, it intertwines three distinct timelines, revealing a gripping saga that invites closer examination of each era.
In 1380 A.D., a critical chapter in history emerges where monk warriors courageously strive to defeat an extraterrestrial force alongside its human host, tragically facing defeat. Enter Guard and Thunder, two sophisticated humanoid robots who manage to extract the alien from the human body. As the woman’s life energy diminishes, she begs Guard to protect her infant child. However, Guard emphasizes the necessity for their presence to remain hidden from human affairs. With their Divine Blade power source, they depart the scene, leaving behind a legacy filled with mystery and intrigue.
Jumping ahead to their own timeline, Guard and Thunder commit themselves to hunting down the rogue aliens that have taken over human hosts. As they navigate this treacherous terrain, they also assume the responsibility of raising a young girl named Yi-an, carefully hiding their true identities from her. Yet, as Yi-an matures, she reveals a deep understanding of the alien prisoners and their scheme to awaken their leader, The Controller. United in their purpose, Guard, Thunder, and Yi-an must work together to thwart The Controller’s sinister plans. However, in a twist of fate, he adeptly unleashes a substance known as Haava, aimed at transforming Earth’s atmosphere to suit his species. Though Guard manages to avert this disaster, The Controller escapes, leaving the trio in a state of confusion.
A following confrontation with The Controller sends Guard, Thunder, and Yi-an spiraling back in time, where they crash-land in the midst of chaos. Guard suffers grave injuries, while Yi-an is saved by a faithful servant boy named Mureuk, who later evolves into a formidable bounty hunter. A decade later, Mureuk encounters The Controller, unwittingly becoming his new host. As time passes, Mureuk’s fascination with mysticism grows, driving him to seek the Divine Blade—an artifact pivotal to resurrecting Thunder’s dormant essence.
Mureuk’s fate intertwines with Yi-an’s, now an adult burning with the desire to revive her cherished companion. Together, they embark on an adventure to uncover the mysteries surrounding the Divine Blade, crossing paths with enigmatic figures such as The Dual Mages, Dogturd, and The Monk Guru—all of whom are tied to the aliens’ elaborate scheme to return to their home world. As tensions rise, the group must unify to overcome the alien threat, only to find that Mureuk has unintentionally become the new host of The Controller.
In an exhilarating final showdown, Lee Ahn, Mureuk, The Dual Mages, and Yi-an join forces to thwart the alien menace. Lee Ahn skillfully deflects one of the extraterrestrial beings while the others fall before their brave assault. As the dust settles, it becomes evident that Mureuk has unwittingly been a host for The Controller throughout their journey. As this interstellar saga nears its conclusion, Lee Ahn narrowly escapes her relentless pursuer, leaving the audience to ponder the profound implications of this intricate and multifaceted narrative.
Last Updated: November 21, 2024 at 09:47
Ending Explained – What Happens at the End of Alienoid?
Still wondering what the ending of Alienoid (2022) really means? Here’s a spoiler-heavy breakdown of the final scene, major twists, and the deeper themes that shape the film’s conclusion.
In the climax of Alienoid, the very fate of Earth hangs in the balance as Lee Ahn, Mureuk, Thunder, and the Sorcerers of Twin Peaks unite to confront the alien Controller. Throughout the story, it is revealed that the Controller had been using Mureuk’s body as his vessel, but a shocking twist emerges: Lee Ahn was actually carrying the Controller within herself all along. This meant the evil alien was using her to regain access to the divine knife and further its plan to destroy Earth. The alien’s influence made her vulnerable, but she eventually manages to break free with the help of her allies.
With the aid of a special armor that Mureuk gives her, Lee Ahn is able to confront the Controller directly and extract him from her body. Once free, the Controller enters into a human vessel—Gu Sam-sik—highlighting the alien’s persistent desire to inhabit someone on Earth. In the chaos of battle, the team fights fiercely against the alien invasion, and Lee Ahn throws her divine knife into the spaceship’s core. The knife pierces its power source, causing the ship to lose energy and avoiding the catastrophic detonation that would have obliterated the Earth.
Meanwhile, Thunder sacrifices himself by imprisoning the Controller within a red crystal, knowing that he cannot keep the alien trapped on Earth forever. He departs into outer space, leaving behind a portal that remains open between the past and present, allowing some characters—such as Mureuk—to return to their original timelines. Mureuk, who has developed feelings for Lee Ahn, decides to stay in the present after realizing that the portal is still functioning and that they still have a chance to meet again.
In the end, the struggle concludes with Earth saved from destruction, but the story hints at unresolved futures. Thunder’s potential return remains uncertain, and the connection between Mureuk and Lee Ahn leaves room for future adventures, possibly a third installment. The ending emphasizes sacrifice, love, and hope as the characters look forward to what’s next, with the possibility that some of them may reunite once more in future stories.
Last Updated: June 25, 2025 at 09:00
Unlock the Full Story of Alienoid
Don't stop at just watching — explore Alienoid in full detail. From the complete plot summary and scene-by-scene timeline to character breakdowns, thematic analysis, and a deep dive into the ending — every page helps you truly understand what Alienoid is all about. Plus, discover what's next after the movie.
Alienoid Timeline
Track the full timeline of Alienoid with every major event arranged chronologically. Perfect for decoding non-linear storytelling, flashbacks, or parallel narratives with a clear scene-by-scene breakdown.
Characters, Settings & Themes in Alienoid
Discover the characters, locations, and core themes that shape Alienoid. Get insights into symbolic elements, setting significance, and deeper narrative meaning — ideal for thematic analysis and movie breakdowns.
Alienoid Ending Explained
What really happened at the end of Alienoid? This detailed ending explained page breaks down final scenes, hidden clues, and alternate interpretations with expert analysis and viewer theories.
