Julia Vera

The BAU travels to Mexico to aid in the capture of a serial killer who has targeted elderly women.

While honeymooning in Buenos Aires, Brennan and Booth can’t just relax on vacation. So, instead, they decide to help Raphael Valenza, a local detective, solve the murder of a Nazi war criminal.

Earl is visited by Joy and is surprised that another prisoner also in visitation happens to be someone both Joy and Earl know. Frank, an old friend of Earl and an old coworker of Joy, describes how he ended up in prison. The story takes place right before Joy and Earl met, and helps explain how many of them grew to become a part of each other's life.

A bizarre occurrence at the infamous "Area 51" swaps Mulder's consciousness with that of a stranger.

The Chances reminisce about the year Jimmy turned 18 – when Maw Maw kicked them out of the house, when a goth Jimmy (a/k/a “Drakkar Noir”) took up residence in the grocery store and when Burt and Virginia finally figured out how to be adults.

Scully searches for a way to reverse the process that caused Mulder and Morris Fletcher to swap identities.