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, and just may destroy them all.
"994 Cars Long"
In the revolution's aftermath, Layton (Daveed Diggs) struggles to govern the shell-shocked survivors. Melanie (Jennifer Connelly) finally makes peace with her demons, only to realize the biggest threat to their survival is right over her shoulder.