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.
Director:
James Hawes
Cast:
Jennifer Connelly
Daveed Diggs
Alison Wright
Mickey Sumner
Susan Park
Iddo Goldberg
Katie McGuinness
Lena Hall
Annalise Basso
Sam Otto
Roberto Urbina
Sheila Vand
Jaylin Fletcher
Emma Oliver
Rowan Blanchard