The Slime People (1963) Timeline Explained – Every Event in Order

The slime people are subterranean reptile-men who are driven from their underground lairs by atomic tests conducted beneath the earth. After being exiled from their homes, they surface and target Los Angeles as their new territory, using the fog machine to create a barrier that allows them to operate in the city.

Foreshadowing: Early scenes establish that underground atomic testing has disturbed the earth beneath Los Angeles, hinting at the subterranean threat.

• atomic tests
• underground
• exile
• invasion
• reptile-men

The fog is a solidified fog generated by an organic-looking machine the slime people bring to the surface. It serves two purposes: it creates a wall that isolates Los Angeles from the outside world, and it cools the surface temperature enough for the slime people to operate comfortably around the clock, giving them a constant advantage.

Foreshadowing: The fog is introduced immediately after the invasion begins, showing it as the key strategic tool for the aliens.

• fog
• barrier
• temperature
• machine
• isolation

The slime people's bodies possess rapid healing capabilities that allow them to seal wounds almost as quickly as they are inflicted. Conventional bullets and weapons cause damage that closes up immediately, making standard combat ineffective against them.

Foreshadowing: Early encounters show the survivors struggling to inflict any lasting damage on the creatures.

• healing
• wounds
• weapons
• immunity
• combat

The pilot Tom Gregory managed to land because of a chemical reaction between the fog and salt from sea water near the coast. This reaction prevented the fog from solidifying in that specific area, allowing his plane to touch down safely when it otherwise would have been trapped like everything else.

Foreshadowing: The mystery of how any plane could land inside the sealed-off city is hinted at when the survivors first discuss the pilot's arrival.

• pilot
• plane
• landing
• sea salt
• chemical reaction

The slime people are vulnerable to their own hollow spear-like weapons. Unlike wounds from conventional weapons, the hollow wounds inflicted by these spears do not close properly, preventing the creatures from healing. This becomes the key tactical insight for the survivors to fight back.

Foreshadowing: The discovery comes after observing how the creatures fight and examining their weapons closely.

• spears
• vulnerability
• hollow weapons
• wounds
• healing

The survivors attempt to pour buckets of saltwater solution toward the fog barrier to create an opening, but they fail because they don't have enough liquid volume to make a significant breach. The fog requires a much larger amount of saltwater to react with and create a passage large enough for escape.

Foreshadowing: The coastal discovery about salt and fog reaction leads the group to attempt this desperate measure.

• saltwater
• bucket
• escape
• fog
• breach

After the saltwater plan fails, the survivors decide to assault the fog-generating machine directly. They breach the facility where the organic-looking device is housed and manage to topple and destroy it, knowing this will disperse the fog but also trigger a desperate counterattack from the slime people.

Foreshadowing: The machine is established as the heart of the invasion early in the story, making its destruction the logical climax.

• machine
• destroy
• fog
• assault
• facility

Once the fog machine is destroyed and the fog disperses, the surface temperature spikes dramatically. The slime people cannot survive this sudden heat change and begin to die off as the city reclaims its ground. The fog was not just a barrier, it was necessary for the creatures to tolerate the surface environment.

Foreshadowing: The fog's role in cooling the surface is mentioned earlier, explaining why the creatures need it to operate.

• temperature
• heat
• die
• fog
• survival

The core group consists of Tom Gregory, a pilot who landed in the city; a Marine separated from his unit; Professor Galbraith, a scientist studying the invaders; and his two daughters Lisa and Bonnie Galbraith. A KTTV reporter named Vince Williams also documents the crisis.

Foreshadowing: Each character's expertise becomes relevant at different points in the survival plan.

• survivors
• pilot
• marine
• professor
• daughters
• reporter

The military is able to sweep into the city only after the fog disperses. With the barrier gone, conventional forces can enter without the protection the fog provided to the slime people. The military then secures the city and begins cleanup operations.

Foreshadowing: The fog barrier is consistently shown as the sole obstacle preventing outside help from arriving.

• military
• rescue
• entrance
• fog
• cleanup