it’s penny’s biggest case yet.

“Koala” – When three masked assailants invade a home and murder an entire family, including a pregnant woman, the CSI’s are called to the scene to investigate. Catherine leads the team through the emotional case, which intensifies her own longing to reconnect with her estranged daughter, Lindsey (Katie Stevens), on the CBS Original series CSI: VEGAS, Thursday, Oct. 20 (10:00-11:00 PM, ET/PT) on the CBS Television Network,