Snowpiercer

A grisly murder stokes class division on Snowpiercer, the Great Ark Train; Melanie Cavill, the powerful head of hospitality, deputizes a dangerous rebel to help solve the killing—Andre Layton, the world's only surviving homicide detective.

Layton uses his position as train detective to investigate the murder and gathering intelligence.

Layton descends into Snowpiercer's black market with Till; Melanie stages a prize fight.

A twist in the murder investigation brings Layton and Till's manhunt to a cat-and-mouse climax.

Tensions between Third Class and First Class are boiling; Melanie makes a fateful decision.

Layton lays track for revolution; an engineering emergency threatens every soul on Snowpiercer.

On a divided Snowpiercer, Melanie intensifies her search for Layton; Layton weaponizes her secret.

Revolution has finally come and Layton leads the lower classes forward in armed rebellion.

The rebel forces are on the ropes when a dangerous foe defects to their side.

In the revolution's aftermath, Layton struggles to govern the shell-shocked survivors.