Ray has promised Sunny a digital detox weekend in nature before they say goodbye to their old-fashioned smartphones forever and get a more modern implant. A gigantic solar flare wipes out all technology on Earth and Sunny and Ray are forced to find their way back to the city without any technological tools. They meet Liz, who saves their lives and wants to show them the way to the city. But in a world where nothing is the same as they knew it, questions of trust and loyalty arise.