Skip to content
What's After the Movie?
Plot summary

Greenland (2020) Plot Summary & Timeline

Greenland (2020) movie poster

Greenland is a 2020 action and drama film directed by Ric Roman Waugh, running 1 hour 59 minutes. This page retells the whole story in 692 words (about 3 minutes to read) and covers 15 key events in order, 4 characters, where and when it is set and 3 themes. Looking for the cast, ratings and where to stream it? See the movie page for Greenland.

to read the plot summary
3 min
key events in the timeline
15
characters profiled
4
themes explained
3
Loading streaming availability…
Greenland (2020) movie poster
Released
Runtime
1h 59m
Director
Ric Roman Waugh
Genres
Action, Drama, Thriller
Original language
English
No spoilers

What Is Greenland About?

The premise of Greenland in 284 words, with nothing given away. The full story follows below.

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.

Full plot

What Happens in Greenland?

The complete story of Greenland, from the first scene to the last, in 692 words (about 3 minutes). Spoilers throughout. Names in the text link to 3 cast member pages.

Spoilers ahead

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.

Timeline

Greenland Timeline: Every Key Event in Order

15 key events in the order they happen, from “John's Return Home” to “Facing the New World”. 15 events name a place, across 12 locations.

  1. 1

    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.

    Where:Atlanta, Georgia

  2. 2

    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.

    Where:Grocery Store

  3. 3

    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.

    Where:Tampa, Florida

  4. 4

    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.

    Where:Atlanta, Georgia

  5. 5

    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.

    Where:Robins Air Force Base

  6. 6

    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.

    Where:Robins Air Force Base

  7. 7

    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.

    Where:Robins Air Force Base

  8. 8

    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.

    Where:En route to Lexington, Kentucky

  9. 9

    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.

    Where:Survivor Camp

  10. 10

    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.

    Where:FEMA Camp

Show the other 5 events of Greenland
  1. 11

    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.

    Where:Abandoned Neighborhood

  2. 12

    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.

    Where:Dale's House

  3. 13

    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.

    Where:Airport

  4. 14

    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.

    Where:Crash Site

  5. 15

    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.

    Where:Greenland Base

Characters

Who Are the Main Characters in Greenland?

4 characters, among them John Garrity (Gerard Butler), Allison Garrity (Morena Baccarin) and Nathan Garrity (Roger Dale Floyd): who each one is and the part they play in the story. Every profile links to the actor’s page.

  • Gerard Butler as John Garrity (Gerard Butler) in Greenland

    John Garrity (Gerard Butler)

    Played by 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.

    • 👨‍👦 Family Man
    • 🛠️ Engineer
    • 🏃‍♂️ Determined
  • Morena Baccarin as Allison Garrity (Morena Baccarin) in Greenland

    Allison Garrity (Morena Baccarin)

    Played by 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.

    • 👩‍👦 Protective Mother
    • 💪 Resilient
    • 🌪️ Resourceful
  • NG

    Nathan Garrity (Roger Dale Floyd)

    Played by 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.

    • 👦 Vulnerable
    • 💔 Dependent
    • 🌈 Innocent
  • Scott Glenn as Dale (Scott Glenn) in Greenland

    Dale (Scott Glenn)

    Played by 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.

    • 👴 Wise Elder
    • 🏡 Safe Haven
    • 💞 Family Support
Setting

Where and When Is Greenland Set?

Greenland is set in Atlanta, Georgia, Tampa, Florida, Robins Air Force Base, Lexington, Kentucky. Here is why the place matters to the story.

When

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.

Where

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.

  • 🏙️ City
  • 🏞️ Nature
  • ✈️ Military
  • 🌎 Geography
Themes

What Are the Themes of Greenland?

3 ideas the story keeps returning to, among them Survival, Family and Chaos.

  1. 01

    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.

  2. 02

    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.

  3. 03

    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.

Tone & mood

What Kind of Film Is Greenland?

Tense in tone, with fast pacing and a straightforward story, going by the plot summary.

Tone
Tense
Pacing
Fast
Story
Straightforward
Intensity
High
Ending
Happy

A relentless and anxiety-inducing thriller that immerses viewers in a desperate, high-stakes race for survival amidst global cataclysm, constantly testing a family's resolve under extreme pressure.

  • anxious
  • desperate
  • suspenseful
  • oppressive
  • urgent
  • tense
  • apocalypse
  • survival
  • family drama
  • race against time

Content notes: apocalyptic disaster, child endangerment, kidnapping, societal collapse, death, destruction.

Quiz

How well do you remember Greenland? Test yourself on the story.

Take the quiz
Loading streaming availability…
Read next

Movies Like Greenland With a Plot Summary

12 films close to Greenland in story and themes that have a full plot summary here: Greenland 2: Migration (2026) and Meteor (1979) lead. 1 of them comes with the ending explained.

All plot summaries

Missing a Movie Plot Summary?

Tell us which film you want explained next: the full story, the timeline, the characters and the ending.

Request a summary
FAQ

Greenland Plot Questions

5 quick answers about Greenland, taken from the plot summary, character guide and setting on this page and the film’s credits.

What is Greenland about?

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.

Read the full plot summary

When and where does Greenland take place?

Greenland is set in Atlanta, Georgia, Tampa, Florida, Robins Air Force Base, Lexington, Kentucky. 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…

The setting explained

Who are the main characters in Greenland?

The story follows John Garrity (Gerard Butler) (played by Gerard Butler), Allison Garrity (Morena Baccarin) (played by Morena Baccarin), Nathan Garrity (Roger Dale Floyd) (played by Roger Dale Floyd) and Dale (Scott Glenn) (played by Scott Glenn).

All the characters

What are the main themes of Greenland?

The summary picks out 3 themes: Survival, Family and Chaos.

The themes explained

Who directed Greenland?

Greenland (2020) was directed by Ric Roman Waugh and runs 1 hour 59 minutes.

Ric Roman Waugh’s films

Coming soon to your phone

The Plot Explained Movie Summary App

From blockbusters to hidden gems: plot summaries, endings explained and timelines on your phone. Save your favorites and never miss a twist again.

Be the first to know when it launches. Your email stays private, always. Learn more about the app