Last week's 200th episode of "Criminal Minds" revealed major milestones about J.J.'s past and what happened to her during her time away from the BAU.

After being kidnapped by a mysterious person, the team jumped into action to save her, learning that her disappearance was related to a secret mission while she was working with the State Department. It turns out that she was in Afghanistan on assignment to find Osama bin Laden which is where she and Cruz met.

During the episode, it was also revealed that J.J. was subjected to horrific torture at the hands of Askari which included waterboarding and electrocution, and that she had a miscarriage during an ambush in the Middle East, reports Zap2It.

Unfortunately, fans are going to have to wait two weeks before CBS premieres an all-new episode, which is titled "Mr. and Mrs. Anderson."  Not many details about the episode have been released, but CarterMatt reveals that it will be centered on Valentine's Day.

The official synopsis states: "When the BAU investigates several murders in the Pittsburgh area, the team searches for a pair of UnSubs working as a team. Also, Garcia and Morgan share their Valentine's Day plans for their respective significant others."

Hollywood Hills also notes that there will be a number of guest star appearances in the upcoming episode, including Stephen Simon (Sam), Ned Bellamy (Alan Anderson), Mary Mara (Judith Anderson), Wendy Davis (Kathleen Benedict), Jarvis George (Agent Eli West), Whitney Morgan Cox (Holly Franklin), Brittany Faith Rosoff (Maya Taylor), Winston Story (Dr. Garnett Packard), and Morgan McClellan (James Crayton).

"Criminal Minds" S9E15, "Mr. & Mrs. Anderson," airs on Wednesday, Feb. 19, 2014 at 9 p.m. on CBS.