After a daring cross-country drive to Arizona, Ethan and Dustin are reunited with Tess and Allie… But the adventure is far from over. The Armstrongs decide to head back to Michigan to be with the rest of their family, but it’s been an entire week since the power went out, and returning home will be even riskier than their trip to the Copper State. Meanwhile, back in Michigan, Ethan and Tess’s parents are forced to navigate the challenges and dangers of being the only preppers in a wealthy neighborhood where no one is prepared to survive in a world that’s been knocked back 150 years. Follow the Armstrong family as Ethan, Tess, Dustin, and Allie fight to survive the treacherous 2,000-mile journey back to Michigan in a world where society is crumbling with every passing hour.