Squirrels are familiar creatures found worldwide, often seen in city parks enjoying human company, displaying impressive agility, and appearing in children’s cartoons. They inhabit a remarkably varied range of environments, adapting to life in trees, underground, icy wastelands, and hot deserts – some even fly or swim. Despite their appealing appearance, squirrels are a highly successful species with large families. This documentary explores fascinating squirrel species and examines their adaptations to extreme environments and interactions with humans. "Going Nuts" reveals the captivating world of one of the planet's most popular mammals.