Three stories explore how we lose and find what matters most to us, as a girl finds a bright spot in a dark world, a boy leads a strange, lost being home, and a group of peaceful creatures loses its home to cruel invaders.
When Gavin takes his metal detector to a new playground to hunt for lost objects, he instead discovers a group of mysterious children who only appear after dark, and who tease him and try to persuade him to play with them until late into the night.