In this episode, the CSI team investigates a body discovered in a luau pit at a Hawaiian-themed hotel. Meanwhile, the overarching seasonal plot intensifies as Internal Affairs detective Nora Cross begins questioning Gil Grissom and Sara Sidle about their sudden return to the lab. Key Plot Points
The victim is identified as JJ Jackson, the son of the hotel owner. The investigation initially focuses on a rape allegation involving JJ and a woman named Rachel, but DNA eventually reveals that JJ was innocent of that crime—his father, Scott Jackson, was the actual perpetrator.
Allie Rajan discovers that Cynthia Koa, Rachel’s sister, killed JJ with a ceremonial weapon (a bat wrapped in Rachel's necklace) out of revenge for what she believed he did.