The Satan Bug

The Satan Bug

Year: 1965

Runtime: 114 mins

Language: English

Director: John Sturges

ThrillerScience FictionMysteryHigh speed and special opsExplosive and action-packed heroes vs. villains

When a U.S. government germ‑warfare laboratory suffers an accident, a deadly pathogen is believed to have been released, killing several scientists. The greater danger looms that a far more lethal strain—dubbed the Satan Bug, capable of wiping out all life—has been stolen. Uncovering its secret could cost you your life. Time runs out as they search.

Warning: spoilers below!

Haven’t seen The Satan Bug yet? This summary contains major spoilers. Bookmark the page, watch the movie, and come back for the full breakdown. If you're ready, scroll on and relive the story!

Timeline – The Satan Bug (1965)

Trace every key event in The Satan Bug (1965) with our detailed, chronological timeline. Perfect for unpacking nonlinear stories, spotting hidden connections, and understanding how each scene builds toward the film’s climax. Whether you're revisiting or decoding for the first time, this timeline gives you the full picture.

1

Barrett is recruited and tested by an impersonator

Lee Barrett is approached by a man who offers him a job with a political group opposing bioweapons. The man is an impersonator sent by Barrett's former boss, Eric Cavanaugh, to test his loyalty. Barrett is unsettled by the offer and the hidden manipulations behind it.

2

Cavanaugh assigns Barrett to investigate murder and disappearance

Cavanaugh asks Barrett to look into the murder of the laboratory's security chief and the disappearance of Dr. Baxter, the head scientist at Station Three. The assignment reframes Barrett's loyalties and pulls him into a covert bioweapons investigation. The task marks the start of the dangerous case.

Station Three laboratory
3

At Station Three, sealing the lab and learning of two bioweapons

Barrett and Cavanaugh reach the secret lab where Dr. Hoffman urges sealing the facility with concrete. Hoffman reveals two deadly weapons inside: a botulinus strain that oxidizes after eight hours and the Satan Bug virus that could annihilate life on Earth. The stakes of the mission become personal and global.

Station Three laboratory
4

Baxter is found dead and vials missing

Barrett enters the sealed lab and discovers Dr. Baxter dead. The vials containing the Satan Bug and botulinus are missing, signaling a coordinated theft and the high risk of release. The mystery deepens as Barrett realizes the threat is more immediate.

Station Three laboratory
5

Ann's telegram and a new suspect emerges

Barrett receives a telegram from his former flame Ann, who is assigned to the investigation. Together they uncover the dead body of another scientist and identify Charles Reynolds Ainsley, a reclusive millionaire, as the primary suspect. The case widens beyond the lab to suspicious corporate power.

Station Three
6

Ainsley threatens to destroy Station Three

Ainsley threatens to release the bioweapons unless Station Three is destroyed, escalating the pressure on Barrett and Ann. The threat reveals a ruthless willingness to annihilate the project to gain leverage. Barrett steels himself for a tense confrontation with a man who will stop at nothing.

Ainsley's location
7

Botulinus demonstration in Florida and follow-up threat to LA

Following the threats, a public demonstration of botulinus takes place in Florida, showing the weapon's power. Ainsley then threatens to unleash more in Los Angeles County unless the laboratory is closed. The international stakes reach a boiling point as the clock ticks.

Florida
8

Lead to missing vials: abandoned car discovery

Barrett and Ann trace a lead to an abandoned car and locate the missing vials, moving the investigation closer to key answers. The discovery tightens the circle around Ainsley and his network. New danger looms as armed men close in.

Abandoned car location
9

Armed men capture them and take them to Hoffman's home

Henchmen seize Barrett and Ann and take them to Dr. Hoffman's home, signaling a shift from laboratory intrigue to direct confrontation with the conspirators. The pair remains under threat as Hoffman's loyalties become a contested facet of the plot. The pursuit accelerates toward a climactic confrontation.

Hoffman's home
10

Gas station showdown and escape; garage set on fire

The henchmen realize they are being shadowed by security, leading to a tense confrontation at an abandoned gas station. Barrett persuades the henchmen to keep Ann hostage as he escapes the burning garage, buying time for the plan to advance. The scene blends action with calculated risk.

Abandoned gas station
11

Hoffman double-crosses his men; deal reached to locate vials in LA

Barrett intercepts Hoffman's car, forcing a confrontation that ends with a surprising deal: they will team to locate the vials in Los Angeles. The uneasy alliance shifts loyalties and sets the stage for the final chase. Suspense tightens as pursuit intensifies.

Highway toward Los Angeles
12

Final showdown with Ainsley; Satan Bug retrieved

During the confrontation with Ainsley, security guards loyal to Ainsley reveal themselves, sparking a fierce struggle. Ainsley drops the Satan Bug during the fight, and Barrett seizes it while gaining control of a helicopter. Ainsley leaps to his death as Barrett makes a controlled landing.

Over Los Angeles; helicopter sequence
13

Ice vials found in LA baseball stadium; bombs disarmed

Ann and authorities locate the remaining vials frozen in the ice of a concession stand at the Los Angeles baseball stadium. Barrett relays the critical information and the team works to disarm the bombs before catastrophe ensues. The tension finally eases as the devices are neutralized.

Los Angeles baseball stadium concession stand
14

Barrett reflects and final landing

Barrett contacts Ann and his superiors to report that the danger is contained. He directs the helicopter to land safely, reflecting on how events have come full circle. The mission ends with a subdued sense of justice restored.

Los Angeles airspace / helicopter

Last Updated: October 09, 2025 at 11:15

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The Satan Bug Summary

Read a complete plot summary of The Satan Bug, including all key story points, character arcs, and turning points. This in-depth recap is ideal for understanding the narrative structure or reviewing what happened in the movie.

The Satan Bug Summary

Characters, Settings & Themes in The Satan Bug

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Characters, Settings & Themes in The Satan Bug

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