Episode 1
Mr. Wilford arrives and threatens Snowpiercer, so Melanie makes a move that can't be undone.
Episode 2
An exchange is made between the two trains, but a far greater revelation might be just over the horizon.
Episode 3
Melanie embarks on her most dangerous mission yet, while Layton reckons with his personal choices.
Episode 4
As the Big Alice crew are granted shore leave on Snowpiercer, Layton and Wilford have differing opinions on the future.
Episode 5
Layton and Miss Audrey make a risky play for Big Alice, but Wilford has his own plans.
Episode 6
Melanie fights for survival in treacherous conditions, vying to do what others before her could not.
Episode 7
Layton and Till investigate the murders. Wilford leads Miss Audrey down a dark path.
Episode 8
An engineering catastrophe on Snowpiercer forces Layton to make a difficult choice, one that might cost him everything.
Episode 9
Wilford presses forward on his endgame while those who are close with Layton grow anxious to learn their fates; Josie tests her newfound ability.
Episode 10
As the train approaches Melanie's retrieval point, Layton leads a furious attempt to try and pick her up but not without some sacrifices.