Snowpiercer

A mysterious rocket crashes near the Snowpiercer train, prompting Melanie to send Till and Ben to investigate. Nine months later, a new society called New Eden has emerged.

Milius and his Animal Squad board the train and confront the crew. Melanie tries to stop them by sealing off the engine, but she is forced to surrender it when Ben's safety is at risk.

Layton insists on using Big Alice to rescue Liana, but Ruth, now mayor of New Eden, opposes the plan as it is the town's primary power source. To resolve the conflict, Layton enlists Javi to modify the system, providing the town with three weeks of electricity while allowing the rescue mission to proceed.

Big Alice intercepts the Snowpiercer, and Milius reaches out to Layton, apparently extending an invitation. Suspecting it may be a trap, Layton and Josie discreetly board the train. At the same time, Nima worries that Layton might be exposed to toxic gas and attempts to disable the Greenhouse Car.

Layton agrees to a trade—Liana for Big Alice—and the trains arrive at the silo. While Layton and his team are held in a waiting room, Josie is taken to Headwood, where Milius reveals his partner, Wilford.

Nima needs more samples for his research, so Milius sends Wilford and a group of soldiers to collect them. At the same time, Milius secretly orders Wolf to kill Wilford. Meanwhile, Layton wakes up on an empty floor and meets other humans who have scars from exposure to toxic gas.

Layton uncovers the identity of the individual behind the experiments conducted on Josie and Liana, and also discovers who is responsible for freezing the world.

Big Alice arrives at New Eden just as Layton, Josie, and Liana find themselves stranded in the harsh cold. They are discovered by a mysterious masked soldier. At the same time, Alex finds himself in a life-threatening situation.

With Layton's help, Alex sabotages the track switch computer and escapes to the town hall. Till intervenes by shooting Rat with Ace's sniper rifle, saving Alex and Layton. At the same time, Melanie reveals the identity of Alex's biological father.

Nima moves toward Snowpiercer as Layton and the Tailies fight their way uptrain following Ruth's capture. While attempting to negotiate, Nima rushes to the rocket control room to initiate the launch, but someone is actively working to sabotage the rocket's mission.