Kaci and Abby are not BFFs. But when a joint family camping trip throws them together, the girls must make the best of it.Luckily, a rickety old amusement park down the road provides the perfect distraction - until Kaci mysteriously disappears for two hours in a fun house.Abby is furious - but then she experiences a bizarre time-lapse of her own.Determined to figure out who is behind their otherworldly abductions, the girls set aside their differences to work together.Soon their close encounters make them BFFs of a different kind - best friends in fear!