CSI: Miami: Season 5, Episode 1

5 - 1: Rio (4)

Horatio and Delko travel to Rio to find Riaz, the man responsible for Marisol's murder. While there, Horatio meets Yelina and learns that his brother is back doing undercover work and may be connected to Riaz, for whom Horatio also suspects his nephew is working. Back in Miami, Natalia, now a CSI, helps Ryan investigate the beating death of a woman in Coral Gables.