: In "All For Our Country" , the team investigated a murder involving an "inside job," leading to a division between Captain Jim Brass and Gil Grissom over whether a fellow law enforcement officer could be responsible. Character Backstories :

: A major highlight of the season was the reappearance of the show's first recurring serial killer, Paul Millander , in the episode "Identity Crisis" . Grissom discovered Millander had a personal obsession with him, timing his murders to coincide with the anniversary of his father’s death.

If you were actually looking for Season 2 (the 2022 revival), the storyline shifted to focus on Catherine Willows returning to the lab to find her missing protegee while the team used the scientific method to solve modern Las Vegas crimes.

The second season of the original aired from 2001 to 2002 and is widely considered a defining period for the series. It deepened the "science-first" approach to crime-solving while introducing personal stakes for its lead investigators. Key Storylines and Arcs