AceShowbiz -

NBC has released some sneak-peek videos for a "Chicago Fire", "Chicago P.D." and "Law & Order: Special Victims Unit" crossover. To investigate a case of a pedophile ring which victims include Detective Lindsay's half brother, the SVU crew travels to Chicago to team up with Chicago P.D. One of the videos shows Lindsay getting hurt before passing out.

The three-way crossover kicks off on "Chicago Fire" Tuesday, November 11 at 10/9c. Members of Firehouse 51 are forced to contend with a house fire, but when the injured owner is rescued from his cellar clutching a suspicious box, Lt. Severide brings in Sergeant Voight (guest star Jason Beghe, "Chicago P.D.") and Detective Lindsay (guest star Sophia Bush, "Chicago P.D.") into the mix for further investigating.

The two-day event continues on "Law & Order: SVU" Wednesday at 9 P.M. Sergeant Benson and the SVU squad get a new lead - evidence of a livestreamed pornography "club" that caters to its subscriber's shocking requests. When Lindsay discovers someone from her past is involved, she hopes it will help lead them to the site's ringleader, but tensions between Voight and Benson could threaten the case.

In other news, "SVU" has just cast "Mad Men" star Harry Hamlin as Rollins' former boss, Deputy Chief Patton. According to TV Guide, in a December 10 episode titled "Pattern Seventeen", Rollins will be contacting her old superior "when the squad investigates a serial rapist whose pattern is similar to several cases she worked back in Atlanta."