After narrowly surviving the catastrophic impact of the Clarke comet that devastated Earth, the Garrity family finds temporary refuge in a fortified bunker in Greenland. But safety is fleeting, and the family soon realizes that in order to survive and rebuild their lives, they must embark on a dangerous and uncertain journey across the ruined landscapes of Europe. Battling harsh weather, scarce resources, and the constant threat of other desperate survivors, the Garritys face relentless challenges that test their courage, resilience, and family bonds. Their journey becomes not just a quest for a new home, but a gripping tale of survival, hope, and the enduring strength of human determination in a world forever changed.