Set more than seven years after the world has become a frozen wasteland, the remnants of humanity inhabit a perpetually moving train while dealing with class warfare, social injustice and the politics of survival.
Snakes in the Garden
S4 E1
The Snowpiercer crew marvel as a rocket shoots through the sky, crashing nearby; Melanie sends Till and Ben to investigate; nine months later, New Eden blooms.
Life Source
S4 E3
Layton demands to use Big Alice to rescue Liana; Ruth, now mayor of New Eden, refuses because it's the town's power supply; Layton makes Javi jury-rig a solution, giving them three weeks of electricity.
North Star
S4 E4
Big Alice catches up to Snowpiercer; Milius radios them, inviting Layton over; sensing a trap, Layton and Josie sneak onto Snowpiercer; Nima is worried Layton will be gassed and attempts to disarm the Greenhouse Car.
The Engineer
S4 E5
Layton hears the deal: Liana for Big Alice; he agrees and the trains dock at the silo; while Layton, Ben, Till, Ruth, and Alex stew in a holding room, Josie is taken to Headwood; Milius introduces his partner in crime: Wilford.
Bell the Cat
S4 E6
Nima needs more samples for his experiments, so Milius sends Wilford and the soldiers to collect; privately, Milius tells Wolf to kill Wilford; Layton wakes up on an abandoned floor and is approached by humans with toxic gas scars.
A Moth to a Flame
S4 E7
Layton learns who was responsible for the experiments on Josie and Liana, before also finding out who froze the world; Big Alice approaches New Eden but can't cross the boobytrapped bridge.
By Weeping Cross
S4 E8
Big Alice pulls into New Eden; Layton, Josie, and Liana sit stranded in the middle of nowhere, freezing to death, when a masked soldier appears; Alex finds herself in danger.
Dominant Traits
S4 E9
Alex sabotages the track switch computer and, with Layton's help, escapes to town hall; Till gets the drop on Ace and uses his sniper rifle to save Layton and Alex from Rat; Melanie reveals the identity of Alex's biological father.
Last Stop
S4 E10
Nima heads for Snowpiercer; Layton and the Tailies fight their way uptrain when Ruth is captured; Nima tries to cut a deal and runs to the rocket control room to initiate the launch sequence.
The Tortoise and the Hare
S3 E1
While Wilford emphasizes his rule aboard his icy train, Layton's pirate train continues its dangerous quest for warm spots, and comes across something entirely unexpected.
The Last to Go
S3 E2
Layton goes on the hunt, as Wilford works to boost morale; the resistance discovers a threat that could undermine everything they've worked for.
The First Blow
S3 E3
It's a game of cat and mouse as both Layton and Wilford vie for the upper hand.
Bound by One Track
S3 E4
Alex finally deals with her parental figures as a track obstruction uncovers a painful past.
A New Life
S3 E5
A series of terrorist attacks threatens to derail Layton and Zarah's big day.
Ouroboros
S3 E7
As the train grapples with Layton's status, he's discovering that some dreams aren't worth having; Wilford makes a shocking discovery.
Setting Itself Right
S3 E8
As the train detours from New Eden, an environmental catastrophe threatens everyone onboard.
A Beacon for Us All
S3 E9
Reunited with old friends, the train throws a party; alliances are tested as the truth is finally revealed.
The Original Sinners
S3 E10
It all comes to a head as old adversaries clash, with New Eden hanging in the balance.
Smolder to Life
S2 E2
An exchange is made between the two trains, but a far greater revelation might be just over the horizon.
A Great Odyssey
S2 E3
Melanie embarks on her most dangerous mission yet, while Layton reckons with his personal choices.
A Single Trade
S2 E4
As the Big Alice crew is granted shore leave on Snowpiercer, Layton and Wilford have differing opinions on the future.
Keep Hope Alive
S2 E5
Layton and Miss Audrey make a risky play for Big Alice, but Wilford has his own plans.
Many Miles From Snowpiercer
S2 E6
Melanie fights for survival in treacherous conditions, vying to do what others before her could not.
Our Answer for Everything
S2 E7
Layton and Till investigate the murders; Wilford leads Miss Audrey down a dark path.
The Eternal Engineer
S2 E8
An engineering catastrophe on Snowpiercer forces Layton to make a difficult choice, one that might cost him everything.
The Show Must Go On
S2 E9
Wilford goes forward with his endgame; Layton sinks to new lows.
Into the White
S2 E10
As things hit their darkest point, Layton hatches a plan.
A grisly murder stokes class division on Snowpiercer, the Great Ark Train; Melanie Cavill, the powerful head of hospitality, deputizes a dangerous rebel to help solve the killing -- Andre Layton, the world's only surviving homicide detective.
Prepare to Brace
S1 E2
Layton uses his new position as train detective to investigate the murder while gathering intelligence for the revolution on the side; Melanie faces a resource crisis, with potentially drastic consequences for the entire train.
Without Their Maker
S1 E4
A shocking twist in the murder investigation brings Layton and Till's manhunt to a cat-and-mouse climax; Layton gets closer to Melanie's big secret, which may prove the most dangerous game of all.
Justice Never Boarded
S1 E5
Tensions between Third Class and First Class are boiling as Melanie stages the trial of the Snowpiercer killer; Third Class threatens a work stoppage, demanding representation on the jury; Melanie makes a fateful decision about which side to favor.
Trouble Comes Sideways
S1 E6
Hiding out with help from his allies, Layton lays track for revolution; an engineering emergency threatens every soul on Snowpiercer.
The Universe Is Indifferent
S1 E7
On a divided Snowpiercer, Melanie intensifies her search for Layton; Layton is weaponizing her secret; Third Class faces a reckoning when he presents them with a choice.
These Are His Revolutions
S1 E8
Revolution has finally come and Layton leads the lower classes forward in armed rebellion; Melanie's house of cards collapses and she's in danger of becoming the first casualty.
The Train Demanded Blood
S1 E9
The rebel forces are on the ropes when a dangerous foe defects to their side; they hatch a final plan to take control of Snowpiercer once and for all, but it comes at a grave, moral cost.
994 Cars Long
S1 E10
In the revolution's aftermath, Layton struggles to govern the shell-shocked survivors; Melanie finally makes peace with her demons.