Two thousand years ago, the planet Aster was dying from resource depletion and endless war. Desperate nations launched colony ships into the unknown. One ship discovered a moon and built Ecumenopolis—an endless city-world covering the entire surface. Aster was left to automated machines that continued to harvest and mine to sustain the city. Centuries later, on Ecumenopolis, a young woman named Elbeth (18) and her sister Crina (16) live in the undercity known as the Hollows, a hidden community of outcasts and survivors led by the resourceful Evren. Together with Nici, Trist, and the young Cyra, they steal food and medicine to survive, always evading the Arbiters—the city's security forces.

After a successful heist in the upper levels, Elbeth and Crina are trapped on a cargo freighter bound for Aster. The ship launches, and they are carried away from the only world they have ever known. On Aster, they find a planet of endless fields, automated harvesters, and processing stations—a lonely, machine-run world. Desperate to return, they steal a supervisor's shuttle, but the Ecumenopolis guidance system rejects their craft as rogue, and the ship is sent hurtling through a mysterious wormhole. They crash-land on a lush, vibrant planet unknown to them.

Here, they are rescued from a pack of predatory rusks by two scouts from a settlement called North: Corin and Vale. The scouts take them to their community, a peaceful agrarian society descended from another lost colony ship that came through the wormhole centuries earlier. The people of Home live in harmony with nature, trading goods freely and celebrating each other at the Grand Solstice festival. Elbeth and Crina are welcomed by the kind Talia, who gives them a home. Elbeth saves a young girl, Arin, from a rusk attack, earning the gratitude of the town. As they adapt to this new world of open skies, real trees, and fresh food, they begin to question whether they ever want to return to the cold, oppressive city of Ecumenopolis.

Meanwhile, on Ecumenopolis, Evren refuses to accept that the sisters are dead. With Nici, Trist, and Cyra, he steals a freighter to Aster. Using station records, they discover the wormhole and theorize that Elbeth and Crina passed through it. They follow, flying their ship through the anomaly and emerging on Home. They reunite with the sisters and learn of the planet's beauty and generosity. The Hollows family is faced with a choice: return to the familiar hardships of Ecumenopolis, or stay on Home where there is abundance, peace, and community. Initially, Evren insists on returning, but after witnessing the joy and safety of this new world—especially in the children—the group votes to stay. They dismantle their shuttle, integrate into North, and build new lives.

The story is framed by an older Elbeth (70) telling the tale to the children of Home, explaining how their ancestors left a dying world behind and found a new home. She points to the distant lights of Ecumenopolis, visible through the planet's atmosphere, as a reminder that while survival was possible there, true living—and love—was found here.

• In space, the planet Aster, scarred by humanity's exploitation, rotates into view. Two thousand years ago, humanity's resource wars led to Aster's decline. On the oil fields, two armies clash in a desperate battle for survival, exchanging fire amid towering derricks and burning oil. A shell detonation ends the scene, shrouding the battlefield in smoke.
• After the nations of Aster flee their dying planet in colony ships, most are lost. One battered ship returns and builds a sprawling city on the planet's moon, eventually covering it entirely to form Ecumenopolis. Meanwhile, Aster itself is left to autonomous machines that harvest and mine for two thousand years to sustain the moon-city. The scene ends with a freighter carrying resources from Aster to the endless towers of Ecumenopolis.
• Elbeth and Crina hide in the Lower Freight District, waiting for a patrol of Arbiters to pass. They descend to a loading dock, pry open a crate marked 'PRE-PROCESSED YIELD', and stuff vacuum-sealed packages into a sack. A clang alerts the guards; they dive under a conveyor belt, then climb a maintenance ladder into the shadows, escaping with the stolen goods.
• Deep beneath Ecumenopolis, a small community shares a rare meal of fresh produce, but their fragile peace is shattered when Oren coughs blood. Despite the grim discovery that their medical case is empty, they resolve to find medicine at market tomorrow, choosing unity and hope for one more night.
• In the bustling Lower Market of Ecumenopolis, five members of the Hollows—Evren, Trist, Nici, Cyra, and Elbeth—execute a coordinated theft. Elbeth creates a distraction by colliding with a shopper and starting an argument, drawing the attention of an Arbiter. While chaos unfolds, the others steal supplies: Evren slips into a dispensary, Trist takes battery packs, Nici takes thermal blankets, and Cyra fills her satchel with water pouches. The group vanishes into the crowd, exchanging a quick nod of success.
• Crina and Elbeth ride a maglift up to the wealthy Level 200, where Crina is awed by the luxurious surroundings. Elbeth leads them through a market terrace into a restaurant service corridor, where they steal food. A cook spots them, but Elbeth shoves a rolling rack to create chaos. They burst into the dining room, and an Arbiter orders them to stop, initiating a chase.
• Sisters Elbeth and Crina flee from Arbiters across the Level 200 Promenade, causing chaos as they vault benches and slide under slabs. Crina pauses to admire the city before Elbeth pulls her along, and they just make it into a maglift as the doors close. Inside, they catch their breath and reveal the food they've gathered. The scene shifts to a maintenance worker who picks up an apple they dropped, polishes it, and takes a bite as he walks away.
• In their Sector 12 shelter, Amra cares for ill Oren while Evren and Cyra bring medical supplies. Trist and Nici celebrate their haul, and Elbeth and Crina return with bread from the upper Spire, despite Evren's warnings. The group shares a tense but warm meal as Evren finally joins in.
• Elbeth and Crina share a red apple on a high spire above the neon city, reminiscing about their lost parents and their guardian Evren. After Elbeth gives Crina the final slice, they vanish, leaving only the apple core. An Arbiter arrives, finds the core, and drops it into a recycling chute.
• In the dim Hollows, a group contends with injury and hunger as Evren's swollen ankle forces him to hand off a critical food interception to Elbeth, Crina, and Nici, who volunteer to brave the automated transports at dawn.
• Elbeth, Nici, and Crina raid a freighter's cargo hold under blue standby lights, but find only empty crates and useless data-cores. A siren blares as the ship seals for launch; they sprint for the exit. Nici slides under the closing gate, but Crina's boot jams in a floor track. Elbeth frees her with a pry-bar, but the bulkhead slams shut, trapping them inside. Nici is left alone on the platform as the ship ascends. Inside, the sisters watch their home planet Ecumenopolis shrink to a distant jewel through a duraglass window.
• Nici bursts into the undercity retreat with dire news: El and Crina are trapped on a freighter bound for Aster. Evren deduces their only hope is to stow away back, and the team powers up a Vox-Com, sitting in tense silence, waiting for El's voice.
• Inside a dark freighter cargo hold, Elbeth discovers an 'ASTER - STATION 27' sign and realizes the ship is heading back to Aster. As Crina raises concerns about food and water, she accidentally opens a pod of rotting compost. Elbeth forms a plan: hide aboard while the ship restocks, then return to Aster. Crina agrees, and they decide to work out a plan for the few days ahead.
• Elbeth and Crina, stowaways in a crate, arrive at Aster Station 27. They overhear workers say the ship will be in dry dock for three months and the air will be vented. Forced to flee, they crawl out of the cargo hold, hide behind a landing leg, and plan to find a departing ship to another station.
• Elbeth and Crina descend from a processing hub onto the farm-planet Aster. Crina discovers soil for the first time, marveling at its warmth. With no clear plan, Elbeth arbitrarily points ahead, and they begin walking through a knee-high field as drones silently drift overhead.
• Elbeth and Crina are running through a vast crop field when a massive harvester drone swoops down and chases them. Elbeth tackles Crina to safety as the drone sweeps past, spraying green pulp. After narrowly escaping, a hydration drone drenches them in freezing water, and they slip through mud to find refuge in a nearby orchard.
• After the rain, Elbeth and Crina rest under a towering apple tree. When Elbeth tosses an apple, a flock of birds erupts, startling them. They realize these are real, living birds—a first for them—and share a moment of awe before continuing through the orchard.
• Hours after escaping, Elbeth and Crina stand in an endless field on Aster, facing Station 27 in the distance. Elbeth argues against seeking help due to the risks of being caught, while Crina is overwhelmed by the thought of never returning home. They decide to start walking back toward the station, still uncertain of their next move.
• As evening falls on Aster, Elbeth and Crina walk through an agricultural field, harvesting carrots from the ground, sharing a moment of lightness. But night quickly descends, plunging them into darkness and cold. They find shelter in a copse of trees, but a haunting two-tone cry and flickering lights in the distance leave Crina terrified and unable to sleep.
• Elbeth and Crina return to a processing facility on Aster, climbing a 100-foot ladder to a catwalk. After a close call with a collection drone, they enter a maintenance portal and move through a rusty utility corridor reeking of blood and sanitizers. Elbeth pries open a double-insulated portal labeled 'SECTOR 4: PRIMARY REDUCTION,' which slides open with a hiss.
• Crina and Elbeth walk through a freezing slaughterhouse, where massive beasts hang upside down and are processed by automated machines. A drop of dark fluid splashes near Crina, who is horrified to learn this is the city's food source. Elbeth urges her to keep moving. When workers approach, they hide under the catwalk.
• Elbeth and Crina hide in a dark drainage recess beneath the butcher floor of Station 27. Two workers above discuss neglecting frozen valves and reveal a shuttle on autopilot, prepped for escape. Crina relays the information, and Elbeth decides they will take the shuttle to get home.
• Elbeth and Crina hide from a maintenance worker, board a supervisor's shuttle, and launch into space, leaving Station 27 behind.
• Crina and Elbeth approach the glittering moon-city Ecumenopolis in a supervisor shuttle, relieved to be returning home. Elbeth contacts Evren via Vox-Com, sharing their success. Their joyful reunion is cut short when the ship's computer announces 'Guidance disabled...' and the transmission dissolves into static, leaving Evren staring at the dead device in shock.
• Inside the Supervisor Shuttle, the autopilot is locked out by the Ecumenopolis guidance grid, which identifies the craft as rogue. The shuttle dives and tumbles violently as alarms blare, ending in a blinding flash of light.
• The stolen ship vanishes into darkness. Inside the supervisor shuttle, the passengers are thrown into chaos as it spins violently toward a planet shrouded in pink clouds. Elbeth admits she cannot fly the shuttle but struggles to regain control, instructing Crina to hold her hand. The cockpit turns blinding orange from atmospheric friction, and the ship computer works to stabilize the trajectory. Despite partial stabilization, the shuttle crashes into a canopy of giant purple trees, fracturing the duraglass and plunging the scene into darkness.
• After crash-landing on an alien planet, Elbeth helps her sister Crina escape the wrecked shuttle. They emerge into a silent, pristine forest with towering trees and pink leaves, overwhelmed by the natural beauty. Standing in the lavender evening light, Elbeth confirms they have arrived, but when Crina asks where, she admits she has no idea.
• Under a rocky overhang at night, Crina and Elbeth are stranded and cold. Elbeth tries to start a fire with a plasma cutter, but the damp wood won't ignite and the battery is low. Frustrated, she gives up, and the sisters huddle together under a thermal blanket, sharing body heat as a menacing animal hum echoes from the canyon. They resolve to wait for dawn.
• In a crowded Ecumenopolis Market, Evren limps toward a dispensary while Trist weaves through the crowd. A large Vid-Cast suddenly switches to a news bulletin reporting the theft and catastrophic failure of a supervisor transport, with occupants presumed dead. Evren stops, transfixed, and Trist silently joins him. They then turn and disappear into the crowd.
• Two scouts, Vale and Corin, observe a crashed spacecraft from a hillside and ride down to investigate. Meanwhile, survivors Elbeth and Crina salvage the wreckage, finding a med-kit and protein blocks, then decide to walk away from the site.
• Elbeth and Crina, weary and hungry, rest in the shade of a treeline and share their last protein pack. Unbeknownst to them, two figures, Corin and Vale, watch silently from the branches above, communicating with hand signals. After a brief respite, the girls continue their journey, staying close to the trees.
• Elbeth and Crina are exploring a valley with orange grass and translucent blue vraals when a pack of six-legged wolf-like creatures attacks. Elbeth shields Crina in a ditch, but just as the alpha lunges, Corin and Vale arrive on horseback, driving off the predators with a slingshot and bow. They introduce themselves humorously, then whisk the sisters away on their steeds.
• After a frantic ride, Corin and the group enter a quaint town square, safe from rusks. Elbeth is anxious to talk but Corin prioritizes getting food, leaving her uneasy amidst the townspeople's stares.
• Vale buys a meal for the newcomers at a cafe. Over stew, Elbeth and Crina explain they accidentally left Ecumenopolis and ended up on Aster. Vale and Corin reveal that their community also traces back to refugees from Aster, and Corin tells them their planet is simply called 'Home'.
• Corin leads Elbeth, Vale, and Crina across a vibrant blue plain on vels, pausing to watch a flock of fast takas birds. They ride to a forest clearing where a massive wrecked transport ship lies, and Corin explains that their ancestors arrived on Home from Aster aboard such ships. Elbeth closes her eyes, absorbing the revelation.
• In a dreamspace, Corin narrates the history of Aster's overpopulation, the formation of a united government, and the voyage to a new planet called Home. After landing, the 500 settlers established four settlements, including North, where they live self-sufficiently but gather for a yearly solstice celebration of nearly 50,000 people.
• The group dismounts by a plot of fruit trees. Vale climbs a tree and knocks down bright green fruits with his bow while Corin gathers them. Everyone tastes the sweet 'Verds,' with Crina's joyful reaction. They collect the remaining fruits and ride north toward the blue rise as the sun sets.
• The group arrives at the cozy valley settlement of North and stops at Talia's cottage. Corin arranges lodging for the night, while Vale stays with the vels. Talia kindly welcomes them, but notices Crina's green-stained face and teases her about the half-eaten bag of verds. Crina is embarrassed but relieved by Talia's warmth. Elbeth and Crina exchange a cautious look before stepping inside, uncertain but accepting the hospitality.
• Talia shows Elbeth and Crina to her daughters' old bedroom, untouched since they left twelve solstices ago. The sisters inspect the cozy space, test the soft mattress, and appreciate the clean, quiet comfort. Talia points out the water and relief room, then leaves them alone. Crina and Elbeth sit together, relieved to be somewhere that feels safe and pleasant.
• Elbeth and Crina accept their stranded life on a low-tech world, finding comfort in each other. Meanwhile, Nici contemplates the city from an overlook before joining the group in the Hollows, where they calmly prepare for an unknown mission.
• Elbeth and Crina are awakened by Maren's scream; her daughter Arin is missing. They follow small footprints to a hill where a rusk has cornered Arin. Corin distracts the beast with a slingshot while Elbeth grabs Arin. As the rusk prepares to attack, Vale arrives on a vel and kills it with arrows. The scene ends with Elbeth comforting the sobbing Arin.
• An anxious crowd watches as Elbeth returns Arin, a terrified little girl, to her mother Maren. Maren drops to her knees, weeping with relief, and checks Arin for injuries. Despite expecting hostility, Elbeth is met with heartfelt thanks from Maren, who takes her hands and expresses gratitude for saving her child. The tension dissolves into a tender moment of community support as Talia guides the group indoors to prepare for the Solstice festival.
• Inside the cottage, Corin praises Elbeth for her selfless bravery, defining it as acting despite fear for a stranger. Elbeth, uncomfortable with the praise, admits she usually only thinks of herself, but Talia reassures her and Crina that their true character has shown. Talia notices Elbeth's dirty state and offers clean clothes, insisting they take care of their own despite Elbeth's reluctance to accept charity. Talia assures her she can repay them later after settling in. Corin bows and leaves, disappearing into the busy square, while Talia directs the two to clean up and get settled.
• Trist scans the sky with a homemade stargazer on an Upper Spire overlook. Nici arrives, insisting that the missing Elbeth and Crina are still alive. Despite his initial doubt, Trist is moved by her conviction and agrees to keep searching together.
• In The Hollows, Evren reveals that the report on El and Crina's disappearance only mentioned lost telemetry, not a crash, sparking hope. Despite his found family's insistence on joining, he plans a solo mission to steal a shuttle and track them, believing it could be a suicide run. Amra, accepting his resolve, straightens his collar and says 'Bring them home, Evren,' before he departs alone through the tarp.
• At night on an upper spire dock, Evren prepares to board a freighter to Aster alone. His friends Nici, Trist, and Cyra insist on joining him, despite his protests that it's dangerous and he might not return. They reveal that Oren and Amra are staying behind, and the group must stay together. Evren relents, calling them idiots, and they sneak into the cargo hold just as the ship departs, leaving the glowing ecumenopolis behind.
• In a vast valley filled with thousands of wagons and crowds gathered at the Central Pavilion, Elbeth and Crina explore the festival with Corin and Vale. Crina receives a free lyra carving from a craftsman, while Elbeth gradually relaxes as friends and Talia's family welcome her. After dancing with Arin, Corin invites Elbeth to join the dance, and she takes his hand, stepping into the swirling celebration.
• At the Grand Solstice celebration, Corin helps the self-conscious Elbeth relax on the dance floor; she stumbles, then finds joy in the music. Across the pavilion, Crina cheers her on while eating verd pie. Later, the sisters lie on a quiet hillside under a star-filled sky, where Crina takes Elbeth's hand and softly hopes Nici sees the same stars.
• In Hangar 2 of Station 27, Evren uses a vidscope to investigate the missing crew's guidance failure, discovering a damaged satellite and a mysterious anomaly. Trist identifies the anomaly as a wormhole, a spacetime bridge. The group deduces the missing crew entered it and, despite unknown risks, decides to find a ship and follow them.
• Evren leads the Hollows crew through Station 27's cargo bay, but their stealth is broken when Cyra drops a paper bird. Workers spot the sign and trigger a lockdown with alarms, red lights, and sec-drones. The crew scrambles into a crawlspace, barely escaping detection as a drone passes overhead.
• Evren, Cyra, Trist, and Nici drop into a blood-stained butcher area of Station 27 during a lockdown. Amidst a pile of dead animals, they consider hiding from drones. The alarm abruptly stops, and an announcement lifts the lockdown. As machinery resumes, the group quickly moves toward the hangar, with Nici taking a final look at the grim scene.
• Evren and Trist manually launch a shuttle from Station 27, bypassing auto protocols to appear as an empty logistics run. As they head toward a wormhole, a worker in the control room watches the shuttle depart with weary resignation, muttering 'Not again.'
• In a valley of amber fern-grass and violet moss, a heavy transport ship descends and lands. From a ridge, Crina and Vale watch as four figures emerge—Evren, Trist, Cyra, and Nici. Overcome with emotion, Crina whispers that they are here. Vale instructs her to go meet them while he retrieves El, then rides away. Crina composes herself, mounts her vel, and rides toward the grounded ship, her hope and disbelief giving way to a joyful reunion.
• The Makeshift Hollows crew lands on an alien planet with blue soil and purple trees. A dust cloud approaches, causing defensive panic, but it's Crina riding a vel. The crew joyfully reunites, and Crina reveals they are in a safe place called Home.
• Elbeth reunites with her family from the Hollows, introduces her rescuers Corin and Vale, and invites them to return to North. The family joyfully accepts, and they all travel together, with Vale riding guard.
• The Hollows' wagon stops in the North, where tense travelers are greeted by friendly Northfolk children. Cyra hesitantly joins Arin and Reva in a game of hopscotch, and with a reassuring nod from Evren, she plays, laughs, and smiles at the colorful lyr overhead, turning tension into joy.
• At dusk, the Hollows family gathers around a firepit on Home, mesmerized by the first controlled fire they've seen. Evren insists they leave at dawn for Ecu, but Crina and Elbeth silently long to stay. Doubt flickers in Evren as he lets soil fall through his fingers. The family sits in quiet warmth, tension unresolved.
• The group unloads provisions on the planet Home, debating whether to return to Ecu through the wormhole. Elbeth, Crina, Trist, and Cyra argue for staying, citing peace and natural beauty, while Evren and Nici express caution or loyalty to Ecu. Cyra tearfully hugs a vel and declares 'I am Home.' The scene ends with the six from Ecu meeting animatedly like a family, with Corin and Vale pausing to watch.
• In a montage, the travelers from Ecumenopolis settle on Aster, building a community. Evren and Corin drive vels, Nici practices archery with Vale and Crina, Trist guides vels to raise a house wall, and Cyra rides with Nici, who kills a pursuing rusk pack leader. An older woman's voiceover reflects on risk, security, happiness, and love. The scene ends with Elbeth and Corin in ceremonial silks before a crowd, implying a wedding, as the voiceover notes Aster was dying two thousand years ago.
• Elbeth, an elderly storyteller, finishes the tale of Aster to a group of children at dusk. A girl asks if the story is true, and Elbeth confirms it with a hug. A boy wonders if Ecumenopolis still exists; Elbeth points to a flickering light in the sky, assuring them that while it remains, this place will always be Home. She tickles her granddaughter, and the scene fades to black.