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Horror,Mystery,Science Fiction-125m
73%
User Score
This is not an expedition. It's an execution.
Overview

The stars are gone. The planets have disappeared. Only individuals aboard space stations or starships were left to give the end a name -- The Quiet Rapture. After decades of decay and crumbling infrastructure, the Consolidation of Iron has made a discovery on a barren moon designated AT-5. An ocean of blood. Hoping to discover desperately needed resources they immediately launch an expedition. A submarine is crafted and a convict is welded inside. Due to the pressure and depth of the ocean the forward viewport has been encased in metal. If successful, they will earn their freedom. If not, another will follow. This will be the 13th expedition.

Series Cast

Mark Fischbach
Mark Fischbach

Simon

Caroline Kaplan
Caroline Kaplan

Ava

Troy Baker
Troy Baker

David

Elsie Lovelock
Elsie Lovelock

SM-8 Research Lead / The Speaker (voice)

Elle LaMont
Elle LaMont

SM-8 Research Assistant / The Whisper (voice)

Mick Lauer
Mick Lauer

The Guy Who Told You to Cross the Wires (voice)

Dave Pettitt
Dave Pettitt

The Father

Holt Boggs
Holt Boggs

Eden Soldier

Isaac McKee
Isaac McKee

Young Simon

Roman Parsons Crow
Roman Parsons Crow

Child of Eden

River Van Coleman Crow
River Van Coleman Crow

Child of Eden

Townes Blaine Crow
Townes Blaine Crow

Child of Eden

Reviews

A review by ChrisSawin
February 06, 2026

The film’s slow burn wouldn’t feel so staggering if it built to something wholly worthwhile. The blood, hallucinations, and sea creature are all great, but they’re too fleeting to make a lasting impact. Iron Lung promises something grand and cosmic, but its climactic reveal is abrupt, with few scares and only a brief glimpse of the monster. Ultimately, it’s two hours of tension that end in a bloody yet unsatisfying climax. https://bit.ly/lungofiron

CinemaSerf
A review by Geronimo1967
February 08, 2026

This time, it’s a “quiet rapture” that has caused mankind’s latest apocalypse, and so for the next couple of hours we spend time with a convict (Mark Fischbach) submersed in a vast and deep ocean of blood. He has been welded into a rust-bucket that has seen better days and with the windows sealed for his safety, he is informed of his mission only by instructions from the surface as he searches for the resources humanity desperately needs to survive. If he fulfils his task, he is to be pardoned and freed, but as his journey continues and his ship begins to fail, then truths he (and we) believe start to become blurred, questioned and compromised as his oxygen supply begins to run out and he can no longer tell what is true from what is hallucination. Now if you are a fan of claustrophobic horror, then this will be for you and Fischbach proves to be a decent exponent. Sadly, though, I just didn’t have enough context nor terms of reference to really get into the story - what had he done to earn this creaking entombment in the first place? That sense of isolation and the audio effects that augment it work well for a while, but after about half an hour I was struggling to remain engaged with his predicament or with this undercooked plot. It has an affecting intensity to it, but I just didn’t find enough happened and when it did, it was all too brief.

A review by larz9
May 30, 2026

Without a doubt a colossal waste of time. Unengaging, scattered writing and zero payoff at the end. We follow a convicted criminal's journey through unknown territory in a steel can with near zero context and simply follow a guy gradually losing his mind in the most uninteresting way, leading the viewer to absolutely nowhere after being absolutely everywhere all at once. If anyone were to ask me if they should watch it, my answer is definitely more direct than the supposed "answer" in the movie: Hell no!

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