'CSI' Finale Preview: Brass And His Ex-Wife Search For Their Missing Daughter (EXCLUSIVE VIDEO)

'CSI' Finale: Meet Brass' Ex

The "CSI" finale could prove perilous for a member of the team -- someone is forced to go undercover to get close to a serial killer in the May 15 season closer (10 p.m. ET on CBS).

The episode, titled "Skin in the Game," should be momentous for a number of reasons -- not only does it introduce Annabella Sciorra as Captain Brass' (Paul Guilfoyle) much-discussed ex-wife, Nancy, but it also sees genre favorite James Callis guest star, along with Ozzy Osbourne, Tony Iommi, Thomas D. Clufetos Jr., and Geezer Burler who appear as themselves.

The Huffington Post has an exclusive preview of "Skin in the Game," and in the video above, Brass and his ex-wife discuss their missing daughter, hinting at the painful past between them.

Tune in for the "CSI: Crime Scene Investigation" season finale at 10 p.m. ET, Wednesday, May 15 on CBS.

"CSI" Season 13

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