When JJ arrives home shaken after a rough case, she breaks down and tells her husband about the abduction of two children.

The BAU investigates a spooky local ghost story of the 'Tall Man' and the clues it provides when two people go missing in the woods of East Allegheny’s Dead Man’s Conservatory, and a third mysteriously surfaces the following day with limited details as to what happened to her friends. To assist with the case, JJ reluctantly returns to her hometown, triggering emotional flashbacks to age 11 and her older sister’s tragic death.

With a member of the BAU in the hospital, the team searches for Everett Lynch, and his daughter, Grace. Also, Spencer has a meaningful visit with his mother, Diana Reid, while she’s experiencing a period of lucidity.

Voit’s internal struggles with himself lead him to a desperate kidnapping. But Rossi’s obsession brings the BAU closer to the truth than they’ve ever been.