When Letty (Michelle Dockery) and Javier (Juan Diego Botto) go on Christmas vacation with Estelle (Lusia Strus) and Rob (Joey Kern) at a secluded luxury hotel in the mountains, the family finally bonds in a way they never have before. But a man following Estelle threatens more than just their holiday. Meanwhile, Christian (Terry Kinney) and FBI Agent Lashever (Ann Dowd) have their own private getaway.