• Cast members Thomas Gibson, A.J. Cook, Kirsten Vangsness, Paget Brewster and Shemar Moore pose after accepting the Favorite Drama Ensemble award for "Criminal Minds" during the 14th Annual Diversity A

Cast members Thomas Gibson, A.J. Cook, Kirsten Vangsness, Paget Brewster and Shemar Moore pose after accepting the Favorite Drama Ensemble award for "Criminal Minds" during the 14th Annual Diversity A (Photo : REUTERS/Mario Anzuoni )

"Criminal Minds" Season 10 features its highly anticipated Episode 22 on April 29, 2015. It happens to be the show's penultimate segment and it is titled "Protection." The upcoming episode of the show will see BAU going after a vigilante. Here are few spoilers for the next sequel of "Criminal Minds" Season 10. Read on to find out more about BAU's latest case.

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[Spoiler alert! This article contains spoilers for "Criminal Mind" Season 10 Episode 22 "Protection." Please do not read further if you don't want to know more about it.]

"Criminal Minds" Season 10 featured a spine-chilling episode last week. The Behavioural Analysis Unit investigated murderers who claimed to be controlled by a monster.

In Episode 22, a serial killer is on the loose and he must be stopped before there are more murders. According to the official synopsis (via Spoiler TV) for "Protection," authorities discover several victims of frenzied shooting in Los Angeles. These victims belong to the area said to be associated with various criminal activities in the state.

BAU gets to the task of catching the vigilante UnSub who is killing those who commit crimes.

"The Mentalist" star Joe Adler, who portrayed FBI officer Jason Wylie, will appear as Danny Lee Watson in the upcoming segment. A promo video (via YouTube.com/Series Every Day) for "Criminal Minds" Season 10 teases the action-packed events of the penultimate segment and gives a glimpse at the killer frantically shooting the gun. BAU agent Derek Morgan calls the criminal a "moral enforcer" who takes hostages to kill his victims. At the same time, he is being encouraged to perform such acts of violence that he thinks will bring rightful justice to the society. Scroll down to watch the video.

Meanwhile, fans must brace themselves for a cliffhanger that lead up to the season finale of Season 10. "The end of Episode 22 [the week before] will have a cliff-hanger," Executive Producer Erica Messer told TV Guide. Villain from the beginning of the ongoing instalment will return. The online predator who almost abducted Officer Kate Callahan's niece Meg will be arrested. The finale will reportedly be a "fast ride" ending on a "positive note without a cliffhanger." Also, JJ will break the news about her second pregnancy.

"Criminal Minds" Season 10 Episode 22 "Protection" airs April 29, 2015 at 9:00 pm on CBS. Come back for more spoilers.