In a future where a failed global-warming experiment kills off most life on the planet, a class system evolves aboard the Snowpiercer; a train that travels around the globe via a perpetual-motion engine.

Lena is a lonely, plump adolescent girl. Much to her surprise she gets a relationship with the popular but unreliable Daan. Lena moves in with Daan and his strange father Tom and is willing to do a lot for his love. More than a lot.