Here's the official guide of CSI season 13 episode 22 "Skin in the Game" (season finale), airing on Wednesday, May 15 on CBS.
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AS RUSSELL AND HIS TEAM INVESTIGATE A SERIES OF MURDERS, ONE OF THEIR OWN FACES PERIL ON A DANGEROUS UNDERCOVER MISSION TO GET CLOSE TO THE KILLER --
Grammy Award-Winning Rock And Hall Of Fame Inductees Black Sabbath To Perform
Guest Stars Include: Eric Roberts as Brother Daniel Larson, James Callis as writer John Merchiston, Tim Matheson as Oliver Tate, Annabella Sciorra as Nancy Brass and Ozzy Osbourne, Tony Iommi, Thomas D. Clufetos Jr., and Geezer Burler as Themselves
- As Russell and his team investigate a series of murders, one of their own confronts peril on a dangerous undercover mission to get close to the killer.