Stephen welcomes actress Jennifer Connelly, director Judd Apatow, plus a musical performance by The Internet.
It all comes to a head as old adversaries clash, with New Eden hanging in the balance.
Reunited with old friends, the train throws a party. Alliances are tested as the truth is finally revealed.
Alex must finally deal with her parental figures as a track obstruction uncovers a painful past.
Hope is a powerful motivator. As things hit their darkest point, Layton hatches a plan.
Melanie fights for survival in treacherous conditions, vying to do what others before her could not.
Melanie embarks on her most dangerous mission yet, while Layton reckons with his personal choices.
An exchange is made between the two trains, but a far greater revelation might be just over the horizon.
Mr. Wilford arrives and threatens Snowpiercer, so Melanie makes a move that can’t be undone.
