Criminal Minds season 9 episode 15 is to air this week despite primetime television's busy schedule for the on-going Winter Olympics. However, CBS is hoping that the ratings of its long-running series will not be greatly affected, and one way to ensure this is to have a number of people guest star in the upcoming episode, which is said to be a post Valentine treat for all the Criminal Minds lovers out there. Catch the all-new episode this week by tuning in on CBS at 9/8c, or by watching Criminal Minds season 9 episode 5 via online access using the free online stream link provided at the bottom.

Prepare yourselves for the most romantic event this season as some of our favorite agents gear up for their own Valentine's date. In one of the sneak peek clips for Criminal Minds season 9 episode 15 titled "Mr. & Mrs. Anderson," we can see Penelope telling Derek how much she likes Sam. But then again, she admittedly tells the other that she wishes for San to be more of a "take charge" type. To which Derek responds by saying that Penelope should just straightforwardly tell the guy what she wants. Sounds like a love confession is about to happen. Don't miss the upcoming episode when it airs tonight. If you did, simply watch Criminal Minds season 9 episode 15 stream through the free online stream link below.

Apart from all the lovebirds in the episode, we will also witness the return of J.J. into the office. Spoilers revealed that a refreshed J.J. is more than eager to get back to work. It can be noted that in the 200th episode of the series, J.J.'s quite difficult time in the past was revealed. We learned through the milestone episode that her disappearance in the previous seasons was due to a secret mission that led to her horrific torture time at the hands of Askari. Our poor J.J. even suffered from miscarriage during an ambush in the Middle East, but it's a good thing she's fine now and she's ready to become part of the team once again. Watch Criminal Minds season 9 episode 15 "Mr. & Mrs. Anderson" via online access using the free link at the end of this post.

Hollywood Hills reports that a number of guest stars are to appear in the latest episode of the long-running suspense procedural including Stephen Simon, who is playing Penelope's love interest Sam. Ned Bellamy is to gest star as Alan Anderson while Mary Mara is to appear as Judith Anderson. So now we know who the titular characters are for the upcoming Criminal Minds season 9 episode 15.

The official synopsis for Criminal Minds season 9 episode 15 reads: "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."

"Mr. & Mrs. Anderson" is to air this Wednesday night, Feb. 19, at 9/8c on CBS. Watch Criminal Minds season 9 episode 15 stream using this free online stream link here.