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

Locusts: The 8th Plague (2005) Plot Summary & Timeline

Locusts: The 8th Plague (2005) movie poster

Locusts: The 8th Plague is a 2005 drama and horror film directed by Ian Gilmour, running 1 hour 28 minutes. This page retells the whole story in 758 words (about 3 minutes to read) and covers 15 key events in order, 6 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 Locusts: The 8th Plague.

to read the plot summary
3 min
key events in the timeline
15
characters profiled
6
themes explained
3
Loading streaming availability…
Locusts: The 8th Plague (2005) movie poster
Released
Runtime
1h 28m
Director
Ian Gilmour
Genres
Drama, Horror
Original language
English
No spoilers

What Is Locusts: The 8th Plague About?

The premise of Locusts: The 8th Plague in 347 words, with nothing given away. The full story follows below.

In the quiet expanses of the American Midwest, a remote genetics laboratory sits beneath acres of rolling farmland, where the promise of cutting‑edge science collides with the stubborn rhythm of rural life. The film opens with a sense of uneasy optimism: a team of researchers has engineered a new strain of locust designed to target only the most damaging pests, offering a high‑tech solution to an age‑old agricultural problem. The setting feels both expansive and claustrophobic, the wide‑open sky hinting at the vastness of the threat that could emerge from a single breakthrough.

Gary Wolf and Russ Snow lead the ambitious project, their partnership a blend of seasoned expertise and restless curiosity. Both men are driven by the desire to protect crops and feed a growing nation, yet their work teeters on the edge of ethical uncertainty. Their laboratory, a sleek compartment of glass and steel, contrasts sharply with the surrounding cornfields, underscoring the tension between human control and the wild forces they seek to tame. Their dynamic hints at a partnership tested by the very science they pursue, setting the stage for choices that could reverberate far beyond the lab walls.

Enter Colt Dunton, a pragmatic farmer who has spent his life coaxing life from the soil, and his girlfriend Vicky, a veterinarian whose steady hands have tended to the livestock that sustain the community. Their world is grounded in the tangible rhythms of planting and harvest, yet they are pulled into the scientific crisis when anomalies begin to surface across the fields. Alongside them, USDA agent Greg Ballard represents the governmental response, balancing bureaucratic caution with the urgency of a looming ecological hazard.

The tone of the film is a taut, atmospheric blend of gritty rural realism and high‑stakes scientific thriller. It explores how a tightly knit community confronts an invisible enemy born from good intentions, raising questions about responsibility, the limits of technology, and the fragile equilibrium between humanity and nature. The mood is charged with anticipation, inviting viewers to watch the sky and wonder what might follow when engineered precision meets untamed chaos.

Full plot

What Happens in Locusts: The 8th Plague?

The complete story of Locusts: The 8th Plague, from the first scene to the last, in 758 words (about 3 minutes). Spoilers throughout.

Spoilers ahead

In a genetics lab about 15 miles outside Prairie, Idaho, scientists Gary Wolf [David Keith] and Russ Snow [Jeff Fahey] push the boundaries of bioengineering by creating a completely new species of locust engineered to target crops that pests otherwise devastate. In a controlled test inside the crop dome, Russ releases the insects into a nearby field, using a strong pheromone lure to coax them back to the main holding pen. The plan begins to unravel when a vital vent jams, leaving the system partially open. A Silogen worker crawls into the tunnel to fix it, only to be overwhelmed and killed as the swarm breaches the facility’s defenses. The locusts escape into the world beyond the lab, setting off a chain of deadly encounters that ripple out to the farms near Prairie.

On a nearby farm, Colt Dunton [Dan Cortese] pursues a new kind of organic pesticide, sharing his work with friends Hank and Agatha [Paraskeva Djukelova]. When Colt leaves to monitor a test, Hank heads into the corn with his husker blade and discovers the carcass of a bull that has been eaten down to its bones. Agatha, grieving the loss of her son Mike, senses danger in the fields and soon becomes the next victim as locusts creep into the farm. Colt rushes to the hospital where his girlfriend, Vicky [Julie Benz], works as a veterinarian, hoping for news about the animals. The initial scene of farmyard tragedy becomes personal for Colt as he and Vicky begin to see a broader pattern: cattle, cows, and other livestock across Prairie start dying in the same unsettling way, their internals gnawed clean by the swarm. A surviving boy from a family picnic is brought to the hospital, and a state trooper arrives with him to help coordinate the response. The evidence mounts when Colt examines a dead locust from a farm vehicle and confirms it is a juvenile, demonstrating that the insects are breeding and evolving.

As the investigation expands, Colt, Vicky, USDA Agent Greg Ballard [Kirk B.R. Woller], and a team of exterminators track the nest and attempt to wipe out the larvae and the adults. The swarm is relentless, and the attempts to spray chemicals escalate the violence, drawing the locusts into a frenzy that leaves the exterminators scrambling for cover. The leadership at the USDA, led by Greg, orders UD-66, a potent chemical weapon, to be deployed. But Vicky cautions that the spray could devastate crops for years to come, while Colt warns that the long-term ecological costs might be greater than the immediate threat. The moral tension intensifies as the battlefield shifts from fields to a public space when the locusts storm an amusement park along the highway, devouring anything in reach and turning a family outing into a harrowing nightmare.

Back at the laboratory, Colt studies the locust larvae and tests live adults, uncovering a troubling paradox: traditional chemical pesticides attract the swarm rather than repel it. This insight fractures the plan to blanket Prairie with UD-66, and a field test in a livestock roundup goes disastrously wrong when the helicopter delivering the pesticide is attacked by the swarm. In a desperate bid to stop the invasion, Colt uses the organic pesticide he developed, releasing it from a plane over Prairie. The swarm collapses in an instant, giving the weary townsfolk a momentary sense of relief—until two larger swarms appear on the horizon.

With the city under siege once more, Russ Snow steps into a pivotal, sacrificial role. He lures the locusts toward a crop dome using the pheromone lure, a move that buys Colt and Vicky time to implement a last-ditch plan. The dome is programmed to self-destruct, and the explosion obliterates the nest and nearly all of the insects inside. The immediate danger is quelled, but the end is not quite here—the film ends with a chilling hint: a truck carrying hundreds of hungry locusts labeled Live Specimens heads toward another crop dome, suggesting that the threat may not be over, but rather merely relocated.

Throughout this high-stakes cascade of scientific ambition and ecological peril, the human cost remains at the center. The bond between Colt and Vicky underpins every decision, even as the couple confronts impossible choices about how to protect the land, the animals, and the people who depend on them. The catastrophe demonstrates how quickly nature can turn engineered precision into uncontrollable chaos, and it tests the resilience and resourcefulness of a community forced to confront a nightmare born from a laboratory and released into the wild.

Timeline

Locusts: The 8th Plague Timeline: Every Key Event in Order

15 key events in the order they happen, from “Engineered locusts released from Silogen lab” to “Russ sacrifices himself and the dome self-destructs”. 15 events name a place, across 15 locations.

  1. 1

    Engineered locusts released from Silogen lab

    In a genetics laboratory outside Prairie, Idaho, Gary Wolf and Russ Snow create a completely new species of locust designed to eat crops' pest insects. They release the locusts into the main crop dome and use a pheromone lure to draw them back into the holding pen. A vent jams during the operation, foreshadowing the trouble to come.

    Where:Silogen Research Facility, near Prairie, Idaho

  2. 2

    Locusts escape and scientists are killed

    The jam prevents proper containment and a Silogen worker is sent into the tunnel to fix the vent. The worker is overwhelmed by the swarm and dies within seconds, and the locusts escape through the open vent. The outbreak begins as the insects spread from the facility into the surrounding fields.

    Where:Silogen Research Facility, near Prairie

  3. 3

    Colt Dunton unveils his organic pesticide

    Colt Dunton is developing a new kind of organic pesticide and introduces it to his friends Hank Odem and Agatha. Colt leaves the farm to check the product, initiating the chain of events that will bring the outbreak to their doorstep. The rural community soon realizes the danger behind the growing swarm.

    Where:Colt's farm near Prairie

  4. 4

    Bull corpses reveal the outbreak is spreading

    On Hank's farm, the bull carcass is found nearly eaten, signaling something is feeding on livestock. Agatha hears something in the corn and discovers the remains of her son, Mike. The unease deepens as the locusts begin their devastating attack on the farmland.

    Where:Hank Odem's farm, near Prairie

  5. 5

    Hank is killed by locusts on the combine

    Hank goes to inspect his combine, which is suddenly covered in locusts. The insects swarm him and he is killed within moments. Nearby, Agatha flees, only to be attacked and killed by the advancing swarm.

    Where:Hank Odem's farm

  6. 6

    Agatha's grief and the locusts reach the town

    Agatha's death underscores that the locusts have crossed from fields into inhabited areas. Colt arrives at the scene to assess the outbreak and teams up with Vicky to investigate further. They begin to see multiple farm animals dying and find a locust embedded in a cow during their examination.

    Where:Prairie area near Hank's farm

  7. 7

    Prairie picnic attacked and hospital report

    A family at a picnic in Prairie is attacked by the locust swarm; the boy survives and is taken to a hospital by a State Trooper. The hospital transfer indicates the scale of the outbreak has reached civilians. Colt and Vicky learn of the outbreak and monitor the spread.

    Where:Prairie

  8. 8

    Nest found and early extermination attempts

    Colt, Vicky, USDA Agent Greg Ballard, and a team of exterminators locate the locust nest and spray pesticides in an effort to kill the larvae and adult locusts. The spray irritates the swarm, causing them to attack the group. Only Colt, Vicky, and Greg survive the encounter.

    Where:Nest site near Prairie

  9. 9

    UD-66 proposed by Greg

    At USDA headquarters, Greg Ballard decides that the only option might be to spray UD-66, the most dangerous pesticide. Vicky warns that such a chemical would prevent plants from regrowing for up to ten years. Colt argues against the plan, urging alternative measures.

    Where:USDA Headquarters

  10. 10

    Amusement park swarm attack

    A large swarm overruns an amusement park off the major highway, leaving visitors to be attacked and killed by the locusts. The panic and destruction highlight the threat spreading through the town. Emergency responders attempt to secure the area as the insects overwhelm the grounds.

    Where:Amusement Park off the major highway

Show the other 5 events of Locusts: The 8th Plague
  1. 11

    Locusts proven to be attracted by chemical pesticides

    Back at the laboratory, Colt studies larvae from the nest and tests live locusts to understand their behavior. He discovers that chemical pesticides attract the locusts rather than deter them, complicating control efforts. Vicky and Colt realize that conventional pesticides may worsen the problem.

    Where:Genetics laboratory, Prairie

  2. 12

    UD-45 deployment leads to helicopter crash

    Greg organizes a large spray using UD-45, gathering livestock in a field to draw the swarm. A helicopter is dispatched to spray the chemical, but the swarm attacks and destroys the aircraft. The attempt to control the outbreak with UD-45 fails catastrophically.

    Where:Livestock field near Prairie; airspace

  3. 13

    Colt deploys organic pesticide to save Prairie

    Colt takes to the skies in a plane to deploy his own organic pesticide over Prairie. The spray kills the local swarm instantly, providing a temporary reprieve. Shocking casualty occurs as Gary Wolf is killed by the locusts during the attack.

    Where:Prairie city

  4. 14

    Two larger swarms approach and Russ's plan unfolds

    Two larger swarms appear over Prairie, prompting desperate measures. Vicky's father Russ uses a pheromone lure to coax the locusts into a crop dome. The lure succeeds, drawing the swarm into containment.

    Where:Crop dome near Prairie

  5. 15

    Russ sacrifices himself and the dome self-destructs

    Russ enters the dome and programs it to self-destruct, sacrificing himself to end the infestation inside. The crop dome explodes, killing the locusts trapped inside. A final truck with live specimens is discovered heading toward another crop dome, ensuring the danger persists.

    Where:Crop dome facility; road to next dome

Characters

Who Are the Main Characters in Locusts: The 8th Plague?

6 characters, among them Colt Dunton (Dan Cortese), Vicky (Julie Benz) and Greg Ballard (Kirk B.R. Woller): who each one is and the part they play in the story. Every profile links to the actor’s page.

  • CD

    Colt Dunton (Dan Cortese)

    Played by Dan Cortese

    A resourceful farmer and experimental pesticide developer who applies practical science to protect his community. He is driven, collaborative, and quick to adapt when the insect outbreak threatens his town. His curiosity about the locust larvae leads him to insights that help form the plan to counter the swarm.

    • 🧑‍🌾 Farmer
    • 🧠 Problem-solver
    • 💪 Determined
  • Julie Benz as Vicky (Julie Benz) in Locusts: The 8th Plague

    Vicky (Julie Benz)

    Played by Julie Benz

    A veterinarian in Prairie who remains pragmatic under pressure. She quickly studies the locusts and challenges the notion that all pests are simply pests, suspecting an engineered origin. She partners with Colt to develop a safer, more effective response, balancing science with compassion.

    • 🩺 Veterinarian
    • 🧭 Pragmatic
    • 🧬 Scientist
  • GB

    Greg Ballard (Kirk B.R. Woller)

    Played by Kirk B.R. Woller

    A USDA agent whose authority drives the emergency response. He leans toward drastic chemical solutions, navigating bureaucratic pressures and escalating the crisis with his decisions. His actions illustrate how institutional perspectives can clash with on-the-ground reality.

    • 👨‍✈️ Agent
    • 🧭 Bureaucrat
    • 🧪 Risk-taker
  • Jeff Fahey as Russ Snow (Jeff Fahey) in Locusts: The 8th Plague

    Russ Snow (Jeff Fahey)

    Played by Jeff Fahey

    Vicky’s father figure and a decisive, self-sacrificing presence. He devises a plan to lure the locusts away and ultimately sacrifices himself to protect others. His courage embodies the human cost of a threat that spans science, industry, and community.

    • 🧔 Father
    • 🕊️ Sacrificial
    • 🧭 Strategist
  • David Keith as Gary Wolf (David Keith) in Locusts: The 8th Plague

    Gary Wolf (David Keith)

    Played by David Keith

    A geneticist at the Silogen facility who helps design the locusts and whose work illustrates the thin line between breakthrough and danger. His involvement shows how ambition in the lab can precipitate a cascading disaster. His fate underscores the peril of experimental oversight.

    • 🧬 Scientist
    • 🧠 Ambitious
    • ⚖️ Risk-taker
  • A(

    Agatha (Paraskeva Djukelova)

    Played by Paraskeva Djukelova

    Colt’s partner Hank’s mother, who experiences the trauma of loss as the outbreak claims lives in the field. Her presence encapsulates the human cost of the crisis and the fear that grips a farming community under siege.

    • 👵 Community-matriarch
    • 😢 Grieving
    • 🧪 Farm-resilience
Setting

Where and When Is Locusts: The 8th Plague Set?

Locusts: The 8th Plague is set in Prairie, Idaho, Silogen Research Facility, Crop Dome and Amusement Park. Here is why the place matters to the story.

Where

Prairie, Idaho, Silogen Research Facility, Crop Dome, Amusement Park

Prairie, Idaho is a rural farming town that becomes ground zero for the locust outbreak. The nearby Silogen Research Facility and its crop dome serve as the principal science setting where engineered locusts are created and briefly contained. The surrounding farms and a nearby amusement park illustrate how the infestation spills into everyday life and endangers the community.

  • ❄️ Idaho
  • 🧬 Genetic engineering
  • 🚜 Farm life
  • 🧪 Laboratory
  • 🦗 Insects
Themes

What Are the Themes of Locusts: The 8th Plague?

3 ideas the story keeps returning to, among them Bioengineering, Hubris and Sacrifice.

  1. 01

    Bioengineering

    The film centers on the creation of a genetically engineered locust designed to eat crop pests, highlighting the promise and peril of scientific manipulation. It shows how lab successes can translate into dangerous real-world consequences when control of ecosystems is in the hands of fallible scientists. The story prompts questions about ethics and accountability in genetic innovation.

  2. 02

    Hubris

    Officials and scientists push forward with aggressive methods despite warning signs, showcasing the cost of bureaucratic and scientific boastfulness. The decision to deploy extreme pesticides accelerates the disaster rather than curbing it. The narrative underscores the dangers of unchecked ambition when human lives and livelihoods hang in the balance.

  3. 03

    Sacrifice

    Key characters make ultimate sacrifices to slow or stop the swarm, illustrating personal courage under catastrophic pressure. Russ Snow volunteers to lure locusts into a trap, choosing to risk his life for others. The theme emphasizes how individual acts of selflessness can alter the outcome of a larger crisis.

Tone & mood

What Kind of Film Is Locusts: The 8th Plague?

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

Tone
Tense
Pacing
Fast
Story
Straightforward
Intensity
High
Ending
Ambiguous

A fast-paced and relentlessly tense creature feature that throws a small town into chaotic survival horror as a man-made ecological disaster spirals out of control, leaving characters in a desperate race against time.

  • tense
  • anxious
  • desperate
  • relentless
  • suspenseful
  • chaotic
  • scientific hubris
  • ecological disaster
  • survival horror
  • creature feature

Content notes: animal death, graphic death, body horror, child endangerment, burning alive.

Quiz

How well do you remember Locusts: The 8th Plague? Test yourself on the story.

Take the quiz
Loading streaming availability…
Read next

Movies Like Locusts: The 8th Plague With a Plot Summary

6 films close to Locusts: The 8th Plague in story and themes that have a full plot summary here: Locusts (2005) and The Swarm (2021) 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

Locusts: The 8th Plague Plot Questions

5 quick answers about Locusts: The 8th Plague, taken from the plot summary, character guide and setting on this page and the film’s credits.

What is Locusts: The 8th Plague about?

In the quiet expanses of the American Midwest, a remote genetics laboratory sits beneath acres of rolling farmland, where the promise of cutting‑edge science collides with the stubborn rhythm of rural life.

Read the full plot summary

When and where does Locusts: The 8th Plague take place?

Locusts: The 8th Plague is set in Prairie, Idaho, Silogen Research Facility, Crop Dome and Amusement Park. Prairie, Idaho is a rural farming town that becomes ground zero for the locust outbreak. The nearby Silogen Research Facility and its crop dome serve as the principal science setting where engineered locusts are created…

The setting explained

Who are the main characters in Locusts: The 8th Plague?

The story follows Colt Dunton (Dan Cortese) (played by Dan Cortese), Vicky (Julie Benz) (played by Julie Benz), Greg Ballard (Kirk B.R. Woller) (played by Kirk B.R. Woller) and Russ Snow (Jeff Fahey) (played by Jeff Fahey); the character guide covers 6 characters in all.

All the characters

What are the main themes of Locusts: The 8th Plague?

The summary picks out 3 themes: Bioengineering, Hubris and Sacrifice.

The themes explained

Who directed Locusts: The 8th Plague?

Locusts: The 8th Plague (2005) was directed by Ian Gilmour and runs 1 hour 28 minutes.

Ian Gilmour’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