When a curious teenage borrower named Arrietty breaks her family's most sacred rule by revealing herself to a human, her sheltered world of miniature living is thrown into chaos. As she forms an unexpected friendship with the boy who discovers her, Arrietty must navigate the dangers of being seen while protecting the secret existence of her kind. What begins as a dangerous mistake becomes a transformative journey that challenges everything she thought she knew about her place in the world.
The Clock family consists of three four-inch-tall people who live incognito among humans, borrowing only what they need to survive. Their quiet life changes when their teenage daughter, Arrietty, is discovered.