14-year-old Arrietty and the rest of the Clock family live in peaceful anonymity as they make their own home from items "borrowed" from the house's human inhabitants. However, life changes for the Clocks when a human boy discovers Arrietty.

When her father unexpectedly passes away, young Ella finds herself at the mercy of her cruel stepmother and her daughters. Never one to give up hope, Ella's fortunes begin to change after meeting a dashing stranger in the woods.