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The Space Between Us (2017) Plot Summary & Timeline

The Space Between Us (2017) movie poster

The Space Between Us is a 2017 adventure and sci-fi film directed by Peter Chelsom, running 2 hours. This page retells the whole story in 644 words (about 3 minutes to read) and covers 15 key events in order, 5 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 The Space Between Us.

to read the plot summary
3 min
key events in the timeline
15
characters profiled
5
themes explained
3
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The Space Between Us (2017) movie poster
Released
Runtime
2h
Director
Peter Chelsom
Original language
English
No spoilers

What Is The Space Between Us About?

The premise of The Space Between Us in 285 words, with nothing given away. The full story follows below.

In a near‑future where humanity has taken its first bold steps onto the Red Planet, a modest Martian settlement hums with the quiet perseverance of pioneers. The barren landscape is softened by glass domes, hydroponic farms, and the constant low‑gravity rhythm that defines daily life. The tone is both wistful and hopeful, a blend of scientific wonder and the intimate struggle of building a home on an alien world.

Gardner Elliot is the only child ever born on Mars, a fragile miracle raised among the colony’s tight‑knit group of scientists and explorers. Orphaned at a young age, he grows up surrounded by the legacy of his mother’s sacrifice and the mystery of his unknown father. Possessing a prodigious intellect and an insatiable curiosity, Gardner spends his evenings sifting through the remnants of his mother’s life, piecing together clues that hint at a world he has never seen.

A chance encounter in an online chatroom introduces him to Tulsa, a sharp‑witted teenager from Earth’s foster‑care system. Their connection blossoms through shared dreams and a mutual yearning for belonging, even as each lives in starkly different environments. Tulsa believes Gardner’s life is confined to a protected Martian habitat, while he imagines a future where the two worlds might intersect.

The story teeters on the edge of possibility as Gardner decides to pursue the ultimate question: What does it truly mean to be human when your roots span two planets? The prospect of stepping onto Earth’s surface—where gravity, atmosphere, and culture are all foreign—carries both awe and danger. Against a backdrop of scientific ambition and personal longing, the film invites viewers to wonder how far one will go to uncover identity, connection, and the fragile beauty of existence.

Full plot

What Happens in The Space Between Us?

The complete story of The Space Between Us, from the first scene to the last, in 644 words (about 3 minutes). Spoilers throughout. Names in the text link to 4 cast member pages.

Spoilers ahead

Multi-billionaire Nathaniel Shepard, the influential CEO of Genesis, embarks on an unprecedented mission to colonize Mars. During this groundbreaking journey, astronaut Sarah Elliot uncovers the shocking news that she is pregnant. Tragically, after giving birth to her son Gardner on Martian soil, she dies due to complications, leaving the identity of Gardner’s father a mystery. To shield Gardner from potential public backlash and safety concerns upon returning to Earth, Nathaniel decides to keep the child a secret, raising him with the aid of astronaut Kendra Wyndham and the rest of the scientific team on Mars.

Fast forward sixteen years, Gardner has grown up and, tapping into his remarkable intellect, he hacks into a robot he helped create to access his mother’s belongings. Among her items, he discovers a wedding ring and a video that features Sarah alongside a mysterious man in a beach house. Convinced this man is his father, Gardner is driven to locate him. Through an online chatroom, he connects with Tulsa, a savvy girl from Colorado’s foster care system. Under the impression that Gardner is living in a luxurious penthouse due to a medical condition, they share dreams of their futures and Gardner promises to visit her one day.

In a video call, Kendra discusses Gardner’s brilliance with Nathaniel and Genesis director Tom Chen, arguing for him to be allowed to visit Earth. However, Nathaniel adamantly opposes this idea. He believes Gardner would need risky surgery to improve his bone density and adjust to Earth’s atmosphere. Defying Nathaniel’s wishes, Gardner undergoes the necessary surgery and training, ultimately boarding a shuttle to Earth, accompanied by Kendra and fellow astronauts.

Upon arrival, Nathaniel confronts Tom, revealing his anger over the fact that Gardner’s training was concealed. As Gardner begins quarantine at NASA for medical evaluations, the results indicate he cannot withstand life on Earth for long. In a bold move, Gardner escapes to find Tulsa and enlists her assistance in his quest to locate his father. Hot on their trail, Nathaniel and Kendra attempt to bring Gardner back to NASA, yet he and Tulsa evade capture, eventually discovering Shaman Neka, the man who married Gardner’s parents.

However, Nathaniel and Kendra soon discover concerning medical results indicating that Gardner’s body contains dangerously high levels of troponin, signaling an enlarged heart—a condition that could be fatal due to Earth’s atmospheric pressure. Gardner ultimately confides in Tulsa about his true origins, but she is skeptical. They locate Neka, who helps them track the beach house seen in Gardner’s video, leading them on an adventure through Summerland, California, with a detour to Las Vegas, which quickly turns dire when Gardner collapses at a hospital.

After the medical team uncovers the carbon tubes in Gardner’s bones, Tulsa finally believes his claims of being born on Mars. Aware of his deteriorating health and desperate to meet his father, Gardner enlists Tulsa’s help to sneak out of the hospital. They arrive at the beach house, only to find that the man is actually Sarah’s brother—not Gardner’s father. Overcome with emotions, Gardner retreats to the sea, expressing his wish to die there before losing consciousness.

In a race against time, Nathaniel and Kendra reach Gardner just in time to administer CPR, leading Gardner to inquire about Sarah, whereupon he realizes Nathaniel is indeed his father. In a desperate bid for survival, Nathaniel, Kendra, and Tulsa rush Gardner to a Dream Chaser spacecraft, launching him into orbit with hopes of stabilizing his condition. Freeing him from Earth’s gravitational pull restores Gardner’s health.

Eventually, Gardner embarks on his journey back to Mars after a heart-wrenching farewell with Tulsa. As Kendra looks to retire from NASA, she chooses to adopt Tulsa, who, fueled by her desire to reunite with Gardner, enrolls in Kendra’s training program. The story closes with a glimpse of Gardner back on Mars, now with his father Nathaniel by his side.

Timeline

The Space Between Us Timeline: Every Key Event in Order

15 key events in the order they happen, from “Mission to Colonize Mars” to “New Beginnings”. 13 events name a place, across 7 locations.

  1. 1

    Mission to Colonize Mars

    Multi-billionaire Nathaniel Shepard, the CEO of Genesis, initiates an ambitious project to colonize Mars. This groundbreaking mission sets the stage for a series of extraordinary events that follow.

    Where:Mars

  2. 2

    Sarah's Discovery

    Astronaut Sarah Elliot discovers she is pregnant while on Mars, adding an unexpected twist to the mission. Shortly thereafter, she gives birth to her son Gardner, but tragically dies due to complications.

    Where:Mars

  3. 3

    Gardner's Upbringing

    With Sarah's death, Nathaniel decides to keep Gardner's existence a secret to protect him. He raises the child with astronaut Kendra Wyndham and the scientific team, ensuring his safety away from public scrutiny.

    Where:Mars

  4. 4

    Gardner Hacking into the Past

    Sixteen years later, Gardner uses his intelligence to hack into a robot he helped create. He uncovers personal items belonging to his mother, including a wedding ring and a video with a mysterious man, which drives his quest to find his father.

    Where:Mars

  5. 5

    Online Connection

    Through an online chatroom, Gardner meets Tulsa, a girl from Colorado's foster care system. They develop a connection as Gardner shares his dreams of visiting her and navigating his mysterious past.

  6. 6

    The Quest for Earth

    Kendra argues for Gardner's chance to visit Earth with Nathaniel opposing it due to medical risks. Despite this, Gardner undergoes surgery and training, making arrangements to travel to Earth.

    Where:Mars

  7. 7

    Arrival to Earth

    Upon reaching Earth, Gardner is quarantined at NASA for evaluations. However, the medical results reveal a shocking truth about his inability to withstand life's pressures on Earth, sparking his desire to escape.

    Where:NASA, Earth

  8. 8

    The Escape

    Determined to meet Tulsa and find his father, Gardner escapes from the facility. He enlists Tulsa's help, leading them on a path filled with challenges as they seek answers about his origins.

  9. 9

    The Search for His Father

    Gardner and Tulsa locate Shaman Neka, the man who married his parents. This meeting leads them through California and Las Vegas in their search for Gardner's biological father.

    Where:California, Las Vegas

  10. 10

    Health Crisis

    As Gardner's adventure unfolds, he experiences a health crisis and collapses at a hospital. Medical staff discover life-threatening issues related to his Martian origins, raising urgency in their search for answers.

    Where:Hospital, Earth

Show the other 5 events of The Space Between Us
  1. 11

    Discovering the Truth

    After medical revelations, Tulsa comes to believe Gardner's claims about being from Mars. They continue their search, but the emotional toll leads Gardner to a heart-wrenching moment at the beach house.

    Where:Beach House

  2. 12

    The Confrontation

    Nathaniel and Kendra reach Gardner just as he faces a life-or-death situation. In a moment of revelation, Gardner realizes Nathaniel is his father, transforming their relationship forever.

    Where:Ocean

  3. 13

    Race for Survival

    In a desperate bid to save Gardner, Nathaniel, Kendra, and Tulsa rush him to a Dream Chaser spacecraft. They launch into orbit, hoping to restore Gardner's health away from Earth's gravitational pressures.

    Where:Space

  4. 14

    Gardner's Return to Mars

    Gardner begins his journey back to Mars after a heartfelt farewell with Tulsa. This marks the beginning of a new chapter as he reconciles with his identity and heritage.

    Where:Mars

  5. 15

    New Beginnings

    Kendra decides to adopt Tulsa, who subsequently joins Kendra's NASA training program. Meanwhile, Gardner embraces his life on Mars with Nathaniel by his side, closing the story on a hopeful note.

    Where:Mars

Characters

Who Are the Main Characters in The Space Between Us?

5 characters, among them Gardner Elliot, Nathaniel Shepard and Tulsa: who each one is and the part they play in the story. 4 of them link to the actor’s page.

  • GE

    Gardner Elliot

    Gardner is a curious and intelligent young man raised in isolation on Mars after the death of his mother. His desire to discover his identity and family leads him on an adventurous journey to Earth. Despite his health challenges, Gardner's resilience and determination to connect with others make him a relatable and inspiring character.

    • 👦 Young Adult
    • 🧠 Genius
    • 🔍 Explorer
  • Gary Oldman as Nathaniel Shepard in The Space Between Us

    Nathaniel Shepard

    Played by Gary Oldman

    Nathaniel is a multi-billionaire and CEO of Genesis who harbors a deep secret about his son, Gardner. His protective nature and internal conflict between his responsibilities and paternal instincts drive much of the story. Nathaniel's character evolves as he faces the consequences of his decisions and ultimately embraces his role as a father.

    • 👔 Businessman
    • 👨‍👦 Father
    • 🤐 Secretive
  • Brittany Robertson as Tulsa in The Space Between Us

    Tulsa

    Played by Brittany Robertson

    Tulsa is a savvy and resourceful girl from the foster care system who connects with Gardner online. Her determination and willingness to help Gardner in his quest highlight her courage and sense of adventure. As the story unfolds, she becomes a crucial partner in Gardner's journey, showcasing her strength and loyalty.

    • 👧 Friend
    • 💪 Brave
    • ❤️ Supportive
  • Carla Gugino as Kendra Wyndham in The Space Between Us

    Kendra Wyndham

    Played by Carla Gugino

    Kendra is a nurturing astronaut and a key figure in Gardner's life on Mars. She embodies a supportive maternal role as she guides Gardner through his challenges. Her character serves as a stabilizing presence, balancing the demands of her career and her responsibilities to Gardner.

    • 👩‍🚀 Astronaut
    • 👩‍👦 Mentor
    • 🌍 Nurturing
  • Asa Butterfield as Tom Chen in The Space Between Us

    Tom Chen

    Played by Asa Butterfield

    Tom is a director at Genesis who plays a role in Gardner's training and decisions regarding his future. He represents the corporate side of space exploration and often finds himself caught between Nathaniel's wishes and the need to support Gardner's potential. His character adds tension and highlights the ethical dilemmas surrounding Gardner's situation.

    • 👨‍💼 Director
    • 📈 Corporate
    • ⚖️ Ethical Dilemmas
Setting

Where and When Is The Space Between Us Set?

The Space Between Us is set in Mars, Earth, Summerland, California and Las Vegas (Present Day). Here is why the time and place matter to the story.

When

Present Day

The events of the movie unfold in contemporary times, reflecting current technological advancements related to space exploration. The narrative captures the ongoing discussions about Mars colonization and the ethical dilemmas surrounding scientific discoveries and human connections in a modern context.

Where

Mars, Earth, Summerland, California, Las Vegas

The movie takes place on Mars, particularly within the scientific facilities where Gardner was raised. Earth scenes unfold in various locations including Summerland, California, known for its scenic beaches, and Las Vegas, famous for its vibrant nightlife and entertainment. These contrasting settings highlight the differences between Gardner's life on Mars and his adventurous journey on Earth.

  • 🌌 Space
  • 🌍 Earth
  • 🌊 Beach
  • 🎰 Entertainment
Themes

What Are the Themes of The Space Between Us?

3 ideas the story keeps returning to, among them Identity, Love and Sacrifice and Adventure.

  1. 01

    Identity

    The theme of identity is central to Gardner's journey as he explores his origins and the mystery of his father. Growing up away from Earth, Gardner's quest to learn about his family shapes his aspirations and connections. The film also reflects on the notion of belonging and finding one's place in the universe.

  2. 02

    Love and Sacrifice

    The movie explores love and sacrifice through Gardner's relationships with his mother, father, and Tulsa. His mother's act of giving birth on Mars sets off a chain of sacrifices, and Gardner's desperation to meet his father highlights the lengths one will go for love. The dynamics of these relationships emphasize emotional resilience amid dire circumstances.

  3. 03

    Adventure

    Adventure is portrayed in Gardner's bold journey from Mars to Earth and his quest to find his father. The exploration of new worlds, both literally and metaphorically, showcases the thrill of self-discovery and the pursuit of one's dreams, culminating in a life-changing experience that defines his character.

Tone & mood

What Kind of Film Is The Space Between Us?

Hopeful in tone, with steady pacing and a straightforward story, going by the plot summary.

Tone
Hopeful
Pacing
Steady
Story
Straightforward
Intensity
Medium
Ending
Bittersweet

A hopeful and romantic sci-fi adventure about a boy from Mars searching for his identity and first love on Earth, blending moments of wonder with an underlying tone of melancholy and the pain of separation.

  • hopeful
  • lonely
  • adventurous
  • romantic
  • melancholic
  • yearning
  • coming of age
  • first love
  • identity
  • space exploration

Content notes: death of a parent, life-threatening medical condition.

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FAQ

The Space Between Us Plot Questions

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

What is The Space Between Us about?

In a near‑future where humanity has taken its first bold steps onto the Red Planet, a modest Martian settlement hums with the quiet perseverance of pioneers. The barren landscape is softened by glass domes, hydroponic farms, and the constant low‑gravity rhythm that defines daily life.

Read the full plot summary

When and where does The Space Between Us take place?

The Space Between Us is set in Mars, Earth, Summerland, California and Las Vegas (Present Day). The events of the movie unfold in contemporary times, reflecting current technological advancements related to space exploration.

The setting explained

Who are the main characters in The Space Between Us?

The story follows Gardner Elliot, Nathaniel Shepard (played by Gary Oldman), Tulsa (played by Brittany Robertson) and Kendra Wyndham (played by Carla Gugino); the character guide covers 5 characters in all.

All the characters

What are the main themes of The Space Between Us?

The summary picks out 3 themes: Identity, Love and Sacrifice and Adventure.

The themes explained

Who directed The Space Between Us?

The Space Between Us (2017) was directed by Peter Chelsom and runs 2 hours.

Peter Chelsom’s films

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