In this episode the focus is on Stewie, a baby stoat growing up in the Derbyshire countryside. Stoats live at a breakneck pace and Stewie is no exception, having fun and adventures with his many brothers and sisters. But to become a grown-up, independent stoat he has a lot to learn, such as how to hypnotise his prey, become a ruthless hunter and avoid becoming dinner for hungry owls and foxes!