'CSI' producers confirm crossover

All three CSI shows will be involved in a crossover storyline later this year, their executive producers have confirmed.

The plot, which sees Horatio call Dr. Ray Langston for help on a case, launches on CSI: Miami, moves to CSI: New York and finishes up in Las Vegas on the regular CSI show.

New York producer Pam Veasey told ET Online of the story arc: "Everyone stays true to their writing style. What you fundamentally do is tell a CSI story, which is what we all have in common.

"Once it gets to your show, you will see each of the show's take a different approach to a story that starts in Miami. We did all get together and talk about what the through-line would be."

She added: "Obviously, Ray Langston travels through all of the shows. You have to find the consistencies with his character, how he would flow into each story."

The crossover begins on CSI: Miami Monday, November 9, moves to CSI: New York Wednesday, November 11 and concludes on CSI Thursday, November 12.