A family aims to travel home amidst a complete breakdown in all digital systems and societal order. Their dog, Yoyo, narrates and observes as the humans' abilities and behaviours change as a result of dangers and threats on their journey. Other travellers have their own agendas and motivations as the world collapses around them and their destination seems less secure and unlikely to offer safety. A crashed plane, escaped wild animals and refugees running from the chaos all play a part along the long walk towards home.