Set more than seven years after the world has become a frozen wasteland, the remnants of humanity inhabit a gigantic, perpetually-moving train that circles the globe as class warfare, social injustice and the politics of survival play out.
Refugees from a war-torn country start showing up to seek asylum in an American town. Only the country these people are from is America and the war they are fleeing is 250 years in the future. The local sheriff with a past, a federal agent and a mother in search of her missing refugee daughter drive this allegory with a surprising conspiracy at the center.
After joining forces with a veteran bounty hunter, sixteen-year-old fraternal twin sisters Sterling and Blair dive into the world of bail skipping baddies while still navigating the high stakes of teenage love and sex.