Plot Analysis Summary
A stranded military squad collapses under isolation, superstition, guilt, and escalating violence inside an abandoned mountain base.
Story Structure — 5 Plot Phases
The Broken Perimeter
The squad reaches the mountain approach and waits for delayed backup. Arango's impatience leads to a mine explosion that cripples Parra and destroys the primary radio.
Key Events
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Squad Reaches Mountain Approach — The anti-guerrilla squad takes position near the mountain base and waits for delayed backup. Characters: Parra, Ponce, Arango, Fiquitiva, Cortez
Location: Mountain approach
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Backup Delay Announced — The squad learns that enemy action has delayed the backup force. Characters: Parra, Ponce, Arango, Fiquitiva, Cortez
Location: Mountain approach
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Arango Breaks From Position — Arango argues about waiting and makes an unauthorized dash toward the base. Characters: Arango, Parra
Location: Base perimeter
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Mine Destroys Parra's Leg — Parra steps on a mine while trying to stop Arango, destroying his leg and the primary radio. Characters: Arango, Parra, Ponce, Cortez
Location: Base perimeter
The Empty Stronghold
The squad enters the damaged base and discovers that its supplies remain untouched. Fiquitiva finds ritual markings, and the soldiers uncover a bound prisoner hidden behind a recently built wall.
Key Events
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Squad Enters the Base — The squad enters the abandoned base to use its medical facilities and loses contact with backup. Characters: Parra, Ponce, Arango, Fiquitiva, Cortez
Location: Mountain base
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Untouched Supplies Reveal Mystery — Bodies and bloodstains are found, but untouched supplies suggest the base was not raided by guerrillas. Characters: Ponce, Arango, Fiquitiva, Cortez
Location: Mountain base
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Fiquitiva Finds Ritual Room — Fiquitiva discovers a room filled with fetishes and prayers, but the others mock his superstition. Characters: Fiquitiva, Ponce, Arango, Cortez
Location: Ritual room
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Prisoner Found Behind Wall — The squad breaks down a new wall and finds a bound woman trapped behind it. Characters: Fiquitiva, Arango, Ponce, Cortez
Location: Recently built wall
The Witch Log
Cortez reads the base log and learns how fear transformed the prisoner into a suspected witch. The sergeant is found dead, the prisoner has escaped, and the squad begins turning against itself.
Key Events
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Questioning the Silent Prisoner — Arango questions the silent prisoner, while Ponce offers her food and the guard order is reinforced. Characters: Arango, Ponce, Fiquitiva
Location: Prisoner room
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Cortez Discovers the Logbook — Cortez finds papers describing the prisoner's interrogation and the soldiers' growing belief that she was a witch. Characters: Cortez, Ponce
Location: Base interior
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Logbook Records the Riot — The log ends with the captain losing control, soldiers killing one another, and demands to kill the witch. Characters: Cortez, Ponce
Location: Base interior
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Sergeant Found Dead — Ponce is summoned away from the guard post, and the squad finds the sergeant dead and the prisoner gone. Characters: Ponce, Cortez, Arango, Fiquitiva
Location: Prisoner room
Mist and Disintegration
Cortez leads an unauthorized patrol into the mist, where confused gunfire kills Arango. Authority collapses as the lieutenant is restrained and Fiquitiva becomes consumed by plague delusions.
Key Events
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Mass Grave Beneath the Base — Fiquitiva falls into a mass grave and accuses the squad of unleashing doom by freeing the prisoner. Characters: Fiquitiva, Cortez, Ponce
Location: Gully beneath the base
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Unauthorized Patrol Enters Mist — A perimeter alarm sounds, and Cortez leads the men into the mist despite orders to hold position. Characters: Cortez, Arango, Ponce
Location: Base perimeter
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Arango Dies in Crossfire — The men shoot at fast-moving shapes in the mist and accidentally kill Arango. Characters: Arango, Cortez, Ponce
Location: Misty perimeter
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Cortez Ties Up the Lieutenant — The squad sides with Cortez, who accuses the lieutenant of hiding the truth and has him tied up. Characters: Cortez, Ponce
Location: Radio room
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Fiquitiva Burns the Corpse Pit — Fiquitiva steals gasoline, burns the corpse pit, and is expelled from the base after attempting to mutilate himself. Characters: Fiquitiva, Cortez, Ponce
Location: Corpse pit
The Last Survivors
Parra dies after a desperate amputation, while the medic's confession triggers further violence. Ponce kills Cortez, descends the mountain, and encounters the prisoner again at the opening location.
Key Events
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Fiquitiva Burns the Corpse Pit — Fiquitiva steals gasoline, burns the corpse pit, and is expelled from the base after attempting to mutilate himself. Characters: Fiquitiva, Cortez, Ponce
Location: Corpse pit
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Parra Dies After Amputation — The remaining team amputates Parra's leg, but gangrene claims his life shortly afterward. Characters: Parra, Ponce, Cortez
Location: Base medical area
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Cortez Executes the Medic — The medic admits killing the sergeant to stop another assault, and Cortez beats him to death. Characters: Ponce, Cortez
Location: Mountain base
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Ponce Kills Cortez — Fiquitiva kills another soldier during his delusion, and Ponce kills Cortez in self-defense. Characters: Ponce, Cortez, Fiquitiva
Location: Base exterior
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Ponce Descends the Mountain — Ponce descends in a disconnected daze while experiencing flashbacks to the village massacre. Characters: Ponce
Location: Mountain descent
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The Prisoner Appears Again — Ponce reaches the film's opening point, where the silent prisoner appears behind him and screams. Characters: Ponce
Location: Opening location
A special commando unit made up of 9 soldiers is sent to a military base in a moorland region after contact was lost and it was believed to have been the target of an attack. Upon arrival, they find a single mysterious survivor: a woman in chains.