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Wirrn

Biological Invasion and Extraterrestrial Assimilation Operations

Description

The Wirrn represent a predatory extraterrestrial species whose biological imperative drives them toward assimilation of organic matter and expansion of their biomass. Operating as a hive intelligence under the command of the Wirrn Leader, they infiltrate the Ark’s systems through direct breach points and controlled hosts like Noah, who serves as their human interface. Their larval stage breaches the station’s barriers while their tactical intelligence targets critical infrastructure—specifically the cryogenic chamber and power systems—to consume sleeping humans as hosts for future expansion. Their vulnerability to high-voltage electricity, discovered through analysis of queen remnants, reveals a biological Achilles’ heel exploitable through desperate human engineering.

Related Events

Events mentioning this organization

30 events
S12E7
Minister’s hollow broadcast shatters fragile hope

As the few remaining crew members reactivate aboard Space Station Nerva, a pre-recorded transmission from Earth’s High Minister crackles through the control room. The message …

S12E7
Commanders clash over revivification orders

Vira hesitates to execute Noah’s command to expedite revivification, citing pending safety checks while he demands urgent action from afar. The tension between entrenched protocols …

S12E7
Noah passes command to Vira before possession overtakes him

Commander Noah, now visibly consumed by the alien Wirrn’s influence, abruptly realizes his own corruption is accelerating. Struggling to maintain coherence, he witnesses the crew’s …

S12E7
Vira intercepts distress signal from Command

Vira receives a fractured distress transmission from the Tranquiller Room just as humanity begins to stir on the nearly overrun Space Station Nerva. The crackling …

S12E7
Noah delivers truth as Vira confesses bond

Noah returns to the others grotesquely transformed, warning that the Wirrn’s full emergence is imminent and providing chilling details of their absorption process. Despite his …

S12E7
Noah abandons survivors after horrific warning

Noah returns to the survivors visibly transformed by the Wirrn infection, warning of imminent annihilation. His physical corruption mirrors the station’s impending doom as he …

S12E7
Discovery of alien larva amid awakening crisis

Rogin and Lycett awaken to find themselves among the last survivors of Space Station Nerva, greeted with grim news from Sarah about mysterious deaths and …

S12E7
Vira enforces revivification amidst terror

With the cryogenic chamber littered with the remnants of humanity’s failed revival, Vira takes command to restart the main phase of revivification despite escalating alien …

S12E7
Doctor redirects Vira from save plan to alien dissection

In the tranquiliser room Vira defies safety protocols to rush humanity’s revival despite the Wirrn invasion, but the Doctor counters that revivification will fail before …

S12E7
Doctor dissects the alien queen's eye

With humanity’s last survivors regrouping beneath Nerva Station’s crippled husk, the Doctor, Harry, and Sarah examine the deceased Wirrn queen in the cryogenic chamber. The …

S12E7
Doctor reveals Noah's alien transformation

As the crew examines the dead Wirrn queen in the cryogenic chamber, the Doctor uncovers the grotesque biological adaptation of the creature's lungs, suggesting an …

S12E7
Doctor risks mind link with Wirrn invaders

The Doctor forces himself to dissect the alien invader’s biology despite grave risks, attaching electrodes to its eye membrane to probe its neural impressions. With …

S12E7
Doctor fuses mind with Wirrn invader

The Doctor straps electrodes to his own temples to bridge his consciousness with the Wirrn’s hive mind, despite Vira’s protests and Sarah’s fear. Risking permanent …

S12E7
Larva erupts from ventilation shafts

Lycett stumbles onto the first physical evidence of the Wirrn’s infiltration—a ventilation grille battered inward, its edges glistening with virulent green residue. As he traces …

S12E7
Vira orders fission guns for survival

Amid the chaos of Lycett’s death and the alien grub’s rampage through the cryogenic chamber, Vira seizes command of the crisis by directing Rogin to …

S12E7
Crew fights giant Wirrn larva breach

The Tranquiller Room’s door groans open as an enormous green Wirrn larva forces its way inside, exposing the crew’s fragile safety. In the chaotic firefight …

S12E7
Doctor deduces Wirrn need electricity to die

In the aftermath of the Wirrn larva’s attempt to breach the Tranquiller Room and slaughter the last crew members, the Doctor connects the queen’s autopsy …

S12E7
Doctor exploits reversed transmats in desperate plan

With the Wirrn larva forcing an attack in the tranquilliser room, the Doctor deduces humanity’s only hope lies in electrified weapons but cannot reach the …

S12E7
Transmat plan sabotaged by power failure

The Doctor's gambit to reverse the transmats as a countermeasure against Noah's control system takeover nearly succeeds as Rogin enters the alcove. However, the plan …

S12E7
Wirrn larva attack forces grim strategy shift

Rogin’s discovery of sabotaged oxygen pumps in section four escalates into a full-scale biological assault when a massive Wirrn larva breaches the tranquiller room. As …

S12E7
Doctor devises electrified defense against Wirrn

With the Ark’s infrastructure collapsing and the Wirrn larvae threatening to breach the tranquiller room, the Doctor connects the Wirrn’s desire to destroy humanity with …

S12E7
Saboteurs plunge room into darkness

Roomin enters the Tranquilliter Room just as awakening humanity faces its extinction. Power fails catastrophically, pinning the Doctor and Sarah underground while darkness swallows the …

S12E7
Doctor descends to restore power alone

The Doctor prepares to send Sarah to investigate power failure but the system is sabotaged as the Tranquilliter Room darkens. Vira notes self-repairing power systems …

S12E8
Doctor and Wirrn clash in power core

The Doctor and his allies converge in the Ark’s power infrastructure to confront the Wirrn leader, who reveals the alien species’ centuries-long search for a …

S12E8
Growing dread over vanished allies

The control room is gripped by escalating unease as Harry and Rogin voice fears for the missing Doctor, Sarah, and Vira, whose absence exposes the …

S12E8
High voltage plan to stop the Wirrn

Rogin and Harry voice escalating concern over the missing Doctor and companions, but Vira redirects focus to their immediate crisis. The Doctor reveals Noah's betrayal …

S12E8
Final preparations for power conduit mission

With the cryogenic chamber’s electrification plan in motion, Rogin outlines Sarah’s perilous route through the narrow conduits beneath the transport ship. Sarah’s abrupt agreement to …

S12E8
Vira transfers radio command to Sarah

With the transport ship’s systems confirmed operational, Vira relinquishes command of the radio to Sarah in preparation for her perilous conduit mission. The transfer underscores …

S12E8
Doctor prepares as Ark nears salvation

Rogin reports the transport ship’s systems fully operational as Vira concludes safety checks, clear that humanity’s return to Earth is a breath away. Meanwhile the …

S12E8
Doctor evades detection while Harry monitors Sarah

Harry feeds cable into the cryogenic chamber conduit as Sarah navigates deeper inside, unaware the Doctor hides in a pod to avoid the Wirrn’s detection …