The next all-new episode of "Criminal Minds" will be intense as the BAU uncovers the secret life of a prominent attorney in Boston after he disappears.

In a promo for the upcoming episode, which is titled "The Boys of Sudworth Place," a man is seen trapped in a dungeon where he is being tortured by several younger men. It appears that the men are seeking revenge against him for sexually abusing them as children.

"Remember us?" asks one of the men.

"No!" screams the lawyer in reply.

In another clip, the attorney shouts "I swear to you I've changed," in a desperate plea for sympathy.

According to Carter Matt, the official synopsis for "The Boys of Sudworth Place," reads as follows:

"When a prominent attorney goes missing in Boston, the BAU unearths secrets in his past which could point to the reasons for his disappearance."

It has also been revealed that "Boy Meets World" star Ben Savage will guest star on "Criminal Minds" later on this season as a young version of Mandy Patinkin's character Jason Gideon.

Executive producer Erica Messer teased that the former Disney star will appear in the 13th episode, which will feature flashbacks of the BAU in the '70s when Gideon and Rossi first began working for the elite FBI unite. During the episode, Rossi will recall the old case while working to solve one in the present. Robert Dunne, who played a younger Rossi back in Season 8, will reprise his role in the episode, which is currently slated to air in January.

"I've wanted to go back to how the BAU all started and now being in Season 10, it feels like it's time," Messer told TVGuide.com. "I'm really excited about it to show our heroes from the beginning in the bomb shelter in Quantico. [Rossi's] memory drives us into the flashback, but it's also very reflective for the whole cast. It's not a typical episode."

Savage, who currently stars in the series "Girl Meets World," first appeared on the show during an episode in Season 3 when he played an emotionally distraught man who went over the edge after his girlfriend was murdered, notes Cinema Blend.

Season 10, Episode 7 of "Criminal Minds," "The Boys of Sudworth Place," will air on Wednesday, Nov. 19, on CBS.

Watch a video teaser below.