Directed by
Ric Roman Waugh
Made by
CatchPlay
Read the complete plot summary and ending explained for Greenland (2020). From turning points to emotional moments, uncover what really happened and why it matters.
John Garrity, portrayed by Gerard Butler, is a Scottish structural engineer residing in Atlanta, Georgia, with his estranged wife, Allison and their diabetic son, Nathan. On a pivotal day, John returns home from work with hopes of reconciling with his family as they prepare to host a gathering to watch the passage of the recently discovered interstellar comet named Clarke.
While at a grocery store, John and Nathan are startled by a formation of military cargo jets flying overhead. Shortly after, John receives an eerie automated call that informs him that he and his family have been pre-selected for emergency sheltering. Alarmed by this development, John rushes home just as the comet fragment enters the atmosphere during a live broadcast. However, the situation escalates dramatically when a shockwave from the fragment vaporizes Tampa, Florida, leaving devastation in its wake. Another automated call signals urgent evacuation instructions for reaching Robins Air Force Base, causing panic among the neighbors, who rush to be with their families while the Garrity family hastily prepares to escape.
Before they can leave, a neighbor, Ed, warns them that Clarke is not just a harmless comet, but a collection of large objects poised to bombard Earth over two days, potentially leading to an extinction-level event. Desperate to save her daughter, neighbor Debra pleads to leave her child in the Garrity’s care, but John drives off, knowing they cannot take her.
Upon arriving at Robins Air Force Base, John’s family is caught in a traffic jam forcing them to continue on foot, during which Nathan accidentally leaves his insulin behind. They manage to gain entry with a QR code on John’s phone but are required to check their belongings. Unfortunately, Nathan’s insulin is nowhere to be found. In a frantic attempt to retrieve it, John rushes back to the car while Allison and Nathan wait to board the plane. Just when it seems they may escape, a soldier discovers Nathan’s medical condition, leading to their refusal from the evacuation. John, unaware of their fate, is allowed on the plane, but during the chaos of an impending mob trying to breach the base, he has to escape as destruction ensues.
Returning to his car, John discovers a note from Allison indicating they headed to her father’s home in Lexington, Kentucky. Meanwhile, Allison and Nathan are picked up by Ralph and Judy Vento, who are headed in the same direction. Ralph, however, has ulterior motives and forcibly ejects Allison, kidnapping Nathan in the process despite Judy’s protests.
John finds refuge with a group of survivors and learns of military flights to bunkers in Greenland, but faces chaos when someone challenges his right to the evacuation wristband. As tensions rise, he inadvertently causes the death of someone in self-defense. In a separate plight, Nathan and Allison find themselves at a FEMA camp, where Nathan’s honesty about his kidnapping leads to their detention. Fate brings Allison and Nathan back together within the camp, igniting hope amidst the despair.
The next day, John scavenges an abandoned neighborhood for food and water, and while watching news reports of global destruction, he finds a car and makes his way to his father-in-law Dale. Realizing his family is missing, John strives to reunite with Allison and Nathan, which they eventually accomplish after a harrowing journey.
As they make plans to escape to Canada for safety, a sudden alert warns them of impending molten debris. Racing against time, they seek refuge and survive a meteor shower that devastates the region. Eventually, they make it to the airport just in time for an evacuation flight to Greenland, but the escape plane’s fate takes a tragic turn when a comet fragment causes a crash landing.
As the Garrity family and other survivors emerge from the wreckage, they brace for impact as Clarke enters the atmosphere—an event that forever changes their lives. Nine months later, as the Greenland base establishes contact with others, John and his family step outside to face a drastically altered world. They are welcomed by the sight of birds soaring overhead—a ray of hope amidst the destruction, as they discover they are not alone, slowly acknowledging their survival.
Follow the complete movie timeline of Greenland (2020) with every major event in chronological order. Great for understanding complex plots and story progression.
John's Return Home
John Garrity, a structural engineer, returns home from work, hopeful to reconcile with his estranged wife Allison and their son, Nathan. They are preparing to watch the passage of interstellar comet Clarke, an event that soon spirals into chaos.
The Eerie Call
While at a grocery store, John and Nathan experience a moment of panic as military cargo jets fly overhead. Shortly after, John receives an alarming automated phone call informing them that their family has been pre-selected for emergency sheltering.
Devastation Strikes
As John rushes home, the comet fragment enters the atmosphere, leading to a catastrophic shockwave that annihilates Tampa, Florida. This horrifying news escalates the urgency for evacuation, and chaos ensues among their neighbors.
Panic and Preparation
A neighbor warns John that Clarke is not merely a comet but poses a massive threat with large objects expected to hit Earth. In the midst of this panic, John and his family hastily prepare to flee their home, feeling the impending doom.
Traffic Jam at the Base
Upon arriving at Robins Air Force Base, John’s family faces a debilitating traffic jam, forcing them to continue on foot. During this ordeal, Nathan accidentally leaves his vital insulin behind, significantly increasing their peril.
Refusal of Evacuation
As they attempt to board a plane for evacuation, a soldier discovers Nathan's medical condition, causing their refusal to leave. John manages to get on a plane but is unaware that Allison and Nathan have been left behind amidst the chaos.
The Note from Allison
Returning to his car in desperation, John finds a note left by Allison indicating they have headed to her father's home in Lexington, Kentucky. This clue ignites John's determination to reunite with his family.
Kidnapping Incident
Allison and Nathan find themselves with Ralph and Judy Vento, who are also heading towards Kentucky. However, Ralph's dark intentions lead to him ejecting Allison and kidnapping Nathan, exacerbating their suffering.
Survivor's Chaos
After regrouping with survivors, John discovers plans for military flights to Greenland. However, tensions escalate as he must defend himself in a dangerous confrontation, resulting in the loss of life, complicating his escape.
Reunion at FEMA Camp
In a newfound twist of fate, Allison and Nathan end up in a FEMA camp. Nathan's honesty about his kidnapping helps them reuniting, providing a glimmer of hope in the desperate circumstances they face.
Scavenging for Supplies
The next day, John scavenges through an abandoned neighborhood for supplies. As he gathers essentials, he catches news reports of devastation worldwide, and his resolve to find his missing family strengthens.
Journey to Family
Determined to locate his family, John makes his way to his father-in-law's house. The realization that his family is still missing fuels his quest to reunite with them, enduring numerous obstacles along the way.
Escape to Canada
Having finally reunited, the Garrity family makes plans to escape to Canada for safety. Their hopes are soon shattered as an alert warns of incoming molten debris, and they must seek refuge from yet another disaster.
Crash Landing
Just as they secure their seats on a hastily organized evacuation flight to Greenland, disaster strikes as a comet fragment causes the plane to crash land. They must navigate the wreckage to survive the aftermath.
Facing the New World
After emerging from the rubble of the crash, the family braces for the reality of Clarke's presence in the sky. Months later, they step outside the Greenland base to a radically changed world, greeted by the sight of soaring birds, symbolizing a fragile hope.
Explore all characters from Greenland (2020). Get detailed profiles with their roles, arcs, and key relationships explained.
John Garrity (Gerard Butler)
John is a devoted father and estranged husband, whose primary goal is to ensure the safety of his family during a global crisis. His character embodies determination and resourcefulness, often making tough decisions to navigate the chaos around him. As the story progresses, John's protective instincts and deep love for his family become apparent as he faces numerous obstacles.
Allison Garrity (Morena Baccarin)
Allison is John's estranged wife, who navigates the harrowing situation with courage and resilience. As a mother, her protective instincts drive her actions throughout the crisis. Despite the tension in her relationship with John at the beginning, her prioritization of family showcases her dedication amid a disaster.
Nathan Garrity (Roger Dale Floyd)
Nathan is the young son of John and Allison, whose health condition adds a layer of urgency to their survival. His innocence and dependency highlight the stakes involved in the family's journey. Nathan's character illustrates the profound effects of parental responsibility under extreme circumstances.
Dale (Scott Glenn)
Dale is Allison's father, who embodies a sense of safety and stability amidst the chaos. His character appears as a potential refuge for the family, representing hope in a time of despair. Dale's presence becomes vital as the family seeks to reunite and find solace during the unfolding disaster.
Learn where and when Greenland (2020) takes place. Explore the film’s settings, era, and how they shape the narrative.
Time period
The film unfolds in a contemporary setting amidst a global catastrophe precipitated by a comet. As the comet's fragments enter Earth's atmosphere, humanity faces an existential threat, catalyzing an urgent response for survival. With a mix of real-time action and survival drama, the narrative captures the immediate aftermath of this celestial disaster.
Location
Atlanta, Georgia, Tampa, Florida, Robins Air Force Base, Lexington, Kentucky
The movie takes place across several pivotal locations, including Atlanta, Georgia, where John and his family reside. The chaos begins in Tampa, Florida, known for its vibrant city life, which is radically altered by the comet's shockwave. Robins Air Force Base serves as a critical evacuation point amid the unfolding disaster. Finally, Lexington, Kentucky, becomes a temporary refuge for the family as they seek safety.
Discover the main themes in Greenland (2020). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
🌍
Survival
At its core, the film revolves around the themes of survival amid overwhelming odds. The Garrity family faces catastrophic events that test their resilience and will to unite against dire circumstances. The urgency of survival drives their actions and decisions, showcasing the lengths one would go to protect loved ones.
💔
Family
Family dynamics play a crucial role in the film, highlighting the strains and bonds formed during crises. John’s estranged relationship with his wife and the protective instincts towards their son illustrate the emotional struggles amidst physical threats. The journey towards reuniting reflects the importance of family and connection in the face of destruction.
⚠️
Chaos
The sudden onset of chaos caused by the comet fragments creates an atmosphere of panic and uncertainty. From military responses to societal breakdown, the film illustrates how disaster can disrupt everyday life. This theme is explored through the characters' frantic efforts to adapt and survive amid growing chaos.
Discover the spoiler-free summary of Greenland (2020). Get a concise overview without any spoilers.
In a near‑future where an ominous comet hurtles toward Earth, everyday life shatters under the weight of an impending catastrophe. Newsfeeds flash warnings, governments scramble to issue directives, and ordinary streets erupt into a chaotic mixture of fear and frantic preparation. The film’s tone is a relentless blend of taut suspense and raw human emotion, painting a world where the sky itself feels like a ticking clock and every decision may be the last.
John Garrity is a structural engineer whose practical mind is suddenly tested by forces far beyond his control. His estranged wife, Allison, carries her own burdens while trying to keep their family together, and their young son, Nathan, whose health requires constant attention, adds an extra layer of urgency. The trio’s relationships are rendered fragile yet resilient, each character embodying a different response to the looming disaster—rational calculation, desperate hope, and childlike bewilderment.
As society collapses around them, the family is thrust onto a perilous trek toward what has been touted as one of the few safe havens left: Greenland. The journey becomes a crucible, exposing them to a landscape reshaped by panic, scarcity, and the raw elements, while also revealing fleeting moments of solidarity among strangers. The film balances intimate family drama with the broader spectacle of a world on the brink, using tight, atmospheric cinematography to heighten the sense of isolation and urgency.
Through its gritty realism and emotional core, the story invites viewers to ponder how ordinary people navigate extraordinary threats, and whether hope can survive when the very planet turns hostile. The mood stays tense yet human, ensuring that the audience remains invested in the characters’ search for safety long before any final resolution is revealed.
Uncover films that echo the narrative beats, emotional arcs, or dramatic twists of the one you're exploring. These recommendations are handpicked based on story depth, thematic resonance, and spoiler-worthy moments — perfect for fans who crave more of the same intrigue.
What's After the Movie?
Not sure whether to stay after the credits? Find out!
Explore Our Movie Platform
New Movie Releases (2025)
Famous Movie Actors
Top Film Production Studios
Movie Plot Summaries & Endings
Major Movie Awards & Winners
Best Concert Films & Music Documentaries
Movie Collections and Curated Lists
© 2025 What's After the Movie. All rights reserved.