Ollie begins to wonder if the smiling man might be real when she stumbles upon the graves of the very people she's been reading about on a school trip to a nearby farm. Then, later, when her school bus breaks down on the ride home, the strange bus driver tells Ollie and her classmates: "Best get moving. At nightfall they'll come for the rest of you." Nightfall is, indeed, fast descending when Ollie's previously broken digital wristwatch begins a startling countdown and delivers a terrifying message.
Only Ollie and two of her classmates heed these warnings. As the trio head out into the woods--bordered by a field of scarecrows that seem to be watching them--the bus driver has just one final piece of advice for Ollie and her friends: "Avoid large places. Keep to small."
And with that, a deliciously creepy and hair-raising adventure begins.