Survivors of Earth's second ice age live out their days on a luxury train that ploughs through snow and ice. The train's poorest residents, who live in the squalid caboose, plan to improve their lot by taking over the engine room.attempt to counteract global warming through climate engineering unintentionally results in an ice age that extinguishes all life except the inhabitants of the Snowpiercer, a massive train powered by a perpetual motion engine that travels a circumnavigation based track, created by the transportation magnate you can be in first class or way in lower class in the back you choose and be a child or an adult up to you cause drama just like the show does