The koalas are disappearing through portals and no one knows why. Sammy listens to the reports on her kitchen radio, reads about it in the news. She sells home-and-contents insurance for Woolworths, doesn’t know much about animal behaviour, is used to staying in her lane. But, on the vanishing marsupials, she has her suspicions. Once a month, Sammy makes the four-hour drive from Fairfield to the Port Macquarie Koala Hospital to volunteer her weekend.