Csi Las Vegas 1x10 «PLUS»

Anson Wix is revealed to be the mastermind behind the conspiracy. He holds Hodges captive, fueled by a vendetta against CSIs who he believes "ruined" his legal cases with small pieces of evidence.

If you are referring to the original 2000 series, this episode focused on entomology, Gil Grissom's specialty, and aired on December 22, 2000. CSI Las Vegas 1x10

Conflict arises when Warrick is suspected of gambling while on duty, a recurring struggle for his character in early seasons. Anson Wix is revealed to be the mastermind

The central mystery surrounding David Hodges finally comes to a head. After Hodges goes missing, Gil Grissom and Sara Sidle lead the team in a desperate search to find him, clear his name, and prevent the entire crime lab's reputation from being destroyed. Conflict arises when Warrick is suspected of gambling

For more details on these episodes, you can check the episode guides on CSI Fandom or IMDb .