Seven-year-old Wen and her parents, Eric and Andrew, are vacationing at a remote cabin in New Hampshire. A handful of miles from the Canadian border, far removed from the bustle of city life, cut off from the urgent hum of cell phones and from the internet, they are more than two miles away from their closest neighbors.
On a summer day, as Wen catches grasshoppers in the front yard, a stranger unexpectedly appears. Leonard is the largest man Wen has ever seen, but he is young and friendly, with a warm smile that wins her over almost instantly. Leonard and Wen continue to talk and play, until three more strangers come down the road carrying strange, menacing objects.
In a panic, Wen tells Leonard that she must go back inside the cabin. But before she goes, her new friend tells her, None of what's going to happen is your fault. You haven't done anything wrong, but the three of you will have to make some tough decisions. I wish with all my broken heart you didn't have to. As Wen sprints away to warn her parents, Leonard calls out, Your dads won't want to let us in, Wen. But they have to. We need your help to save the world. Please.
