An Irish immigrant moves to America, bringing along a now-beloved Halloween tradition.

When Lila and her family leave Ireland for the United States, Lila misses many things, but especially Halloween. Each year, she and her siblings look forward to tricking a sly spirit named Jack by carving turnips into jack-o'-lanterns and walking the streets of their small town in ghostly costumes. Now, with no turnips in sight, can she bring the spirit of the holiday to the crowded city streets of her new home?