The daughter of high-powered diplomats, Special Agent Emily Prentiss joins the team and must convince Gideon and Hotch she deserves the job.
Frankie Jr. is brought in to help with a murder case involving a youth hockey league; Cailin asks to stay with Maura; Maura has trouble living with a teenager.
While interviewing potential replacements for Naomi, the doctors at Oceanside Wellness don't understand Addison's resistance to hiring Jake Reilly; Cooper disregards the law as he tries to help a young, sick patient.
In the hospital morgue, Melinda investigates a haunting -- involving the death of a surgeon.
Scully finds herself trapped in a desolate area where townspeople seemingly worship a hitchhiker.
