Nine-year-old Emma spends her first summer without her parents on the volcanic island where her grandparents and cousins live, discovering a newfound sense of freedom. The beautiful island is also home to the Pantùs, impressive aquatic guardians who watch over its people – and they are determined to look after Emma too! Between new experiences, a different way of life and fantastical guardians she didn’t ask for, Emma’s summer turns out anything but ordinary!