The CSI cat was let out of the spoiler bag weeks ago:

Jorja Fox will reprise her role as Sara Sidle for at least five episodes this fall.

CBS has released a few photos from the drama’s September 24 premiere. Below, get your first look at Sidle back on the scene, including her introduction to the new man in charge, Dr. Raymond Langston:

Announced via CBS’ Twitter is a major crossover between “CSI: Crime Scene Investigation” and its spin offs. Laurence Fishburne’s Dr. Raymond Langston will be the character from the original series who will make a visit to “CSI: Miami” and “CSI: NY“. No word on other characters.

The crossover is scheduled to take over within 1 week this Fall, but it is still unknown in which week it will take place. “Miami” will be the first to premiere, entering the eighth season on Monday, September 21. It is followed by the sixth season premiere of “NY” on Wednesday, September 23 and the tenth season of “CSI” on Thursday, September 24.

Langston is the character brought in to the Las Vegas version to anticipate the loss of William Petersen’s Gil Grissom. The transition was not so much a success but the network is making some changes that hopefully will be better appreciated. Jorja Fox is invited back to the show to reprise her role as Sara Sidle.

Another plan is to change the wardrobe of Langston. If previously he was seen in suits with his glasses on, the character will lose it all in future episodes. “I think what you’re looking for is wardrobe that reflected him being more comfortable in his environment,” CBS Entertainment President Nina Tassler said. “I mean, he came as an outsider coming in, so his clothes - you know, he was in suits, he was a little stiff, he wore his glasses.”

As one star returns to CSI, another is leaving the lab. Producer Naren Shankar told TV Guide Magazine that Lauren Lee Smith won’t return as the character of Riley Adams in the fall.

“She’s not going to be back for Season 10,” he said. “It was an issue of how we were feeling the ensemble was working. When we brought in the character of Riley, it got lost in the shuffle a little bit because we had lost Warrick, we had lost Sara, and then in the middle of last season Grissom finally left. I think, as a result, the character never quite found its footing in terms of the rest of the gang.”

As the result of Riley’s exit, a slot will be open for Sara Sidle (Fox), who is now ready to return to work after her burnout in season eight.

“She shows up because the team is understaffed,” said Shankar. “The undersheriff reaches out for a recommendation and Sara says, ‘I think that person might be me.’”

Sidle will appear on at least five episodes, and Shankar assures fans that the character wll be featured prominently during this time.

We already know that Jorja Fox will appear on the new season of CSI. What show spoilers could possibly top that news?

According to executive producer Carol Mendelsohn, who spoke to Entertainment Weekly’s Michael Ausiello, CSI will be bringing back members of the dangerous Millander clan in episode two.

“The last time we saw [serial killer] Paul Millander was in season 2 when Grissom had dinner at [his alter ego] Judge Mason’s house, because, if you remember Paul lived a double life as a judge,” she said. “And we met Mrs. Mason and their young son, Craig. Well, Paul’s dead, but Mrs. Mason and Craig live on. And we will see them in episode 2.”

As for upcoming CSI storylines:

• Viewers will receive an explanation for the ring Langston has on his finger;
  
• There will be a new, season-long serial killer arc.
  

Jorja Fox left CSI at the end of 2007-08 season. But fans of this wildly-popular drama can look forward to the reemergence of Sara Sidle this fall. Multiple sources confirm that Fox will appear in the Season 10 premiere, along with a few additional episodes.

“We’re thrilled for Jorja’s return,” CSI executive producer Carol Mendelsohn told The Associated Press, adding that viewers will “discover where life has taken Sara Sidle and what brings her back to the CSI team in Las Vegas.”

CSI returns to the air on September 24.

Season 10 of “CSI: Crime Scene Investigation” will see Jorja Fox returning as Sara Sidle in multiple episodes. After making a final regular appearance in 2007, the 41-year-old is set to reappear playing her Las Vegas forensic scientist character in the September 24 episode of the CBS crime drama, the television network confirmed Friday, July 17.

“We’re thrilled for Jorja’s return to CSI,” executive producer Carol Mendelsohn shared the good news. She then added, “The viewers and longtime CSI fans will be excited to discover where life has taken Sara Sidle and what brings her back to the CSI team in Las Vegas in our premiere episode.” According to The Hollywood Reporter, Jorja will be reprising her role in five episodes of the latest season.

Joining the popular series since the very beginning, Jorja Fox left during the eighth season. At the time, her character suffered from job burnout and thus decided to leave the crime lab to deal with past demons. She made a cameo in William Petersen’s final episode back in January as the series shows their characters Sara Sidle and Gil Grissom reunited in Costa Rica.

CBS executives and “CSI” producers are reported seeking to make significant creative changes on the show next season after there was a drop in ratings following Petersen’s departure. There is yet word on immediate plans for Petersen despite Jorja’s return to the series.

There was an instrumental theme song in the first season, which has been replaced in syndication. CSI’s theme song is Who Are You, written by Pete Townshend with vocals by Roger Daltrey, both of The Who, as the title track of their 1978 album. The show’s spinoffs also use The Who songs as their theme songs: Won’t Get Fooled Again for CSI: Miami and Baba O’Riley for CSI: NY, both recorded by The Who in 1971 for their album Who’s Next. This was parodied in an episode of Two and a Half Men, where a CSI parody used Squeeze Box as its theme. The Who’s Roger Daltrey made a special appearance in a season seven episode, Living Legend, which also contained many musical references such as the words “Who’s Next” on a dry erase board in the episode’s opening sequence.

Throughout the series, music plays an important role; artists like The Wallflowers, John Mayer, Method Man, and Akon (with Obie Trice) have performed onscreen in the episodes The Accused is Entitled, Built To Kill, Part 1, and Poppin’ Tags, respectively. The Wallflowers’ Everybody out of the Water can be found on the CSI soundtrack CD. Mogwai is often heard during scenes showing forensic tests in progress (see Style, above) as are Radiohead and Cocteau Twins, but several other artists have lent their music to CSI including Rammstein - used heavily in Lady Heather’s story arc. Sigur Rós can be heard playing in the background in Season 2 episode- Slaves of Las Vegas - The Turtles (Grave Danger) and Marilyn Manson (Suckers). Industrial rock band Nine Inch Nails have also been featured multiple times throughout the three series’.

Download All Season’s HD Quality DVD

The ninth season finale of CSI airs on Thursday, May 14.

As previously reported, the episode “All In” will throw Langston into the kind of field operation to which he’s unaccustomed.

Look for Cynthia Watros, best known as tail-end survivor Libby on Lost, to guest star on the installment, which centers around a series of murders related to missing poker chips.

(CSI (May 14, CBS)
Det. Ray Langston (Laurence Fishburne) has to use deadly force for the first time in his CSI career while investigating a series of murders tied to a scam involving poker chips from a dearly departed casino. Lost’s Cynthia Watros and Jericho’s Gerald McRaney guest star. Wallace Langham (Hodges) promises “no major changes to the team” — a relief to fans still grieving the loss of Grissom. And after two season-ending cliff-hangers in a row, fans won’t have to bite their nails all summer: “It actually is self-contained,” Langham adds, “a really good standalone episode.”

CSI Thursday, May 14
The CSIs investigate a series of murders tied to a scam involving valuable poker chips from a long-gone casino and Det. Ray Langston must use deadly force for the first time in his career as a CSI. Cynthia Watros and Gerald McRaney guest star.