The Compass Killer takes another victim, but Mac has another problem on his hands–Flack has gone AWOL.

The CSIs attempt to determine what caused an SUV to crash into a car, killing two people and leaving several others injured.

The big CSI crossover event concludes in Vegas as Langston continues his desperate search for the missing Madeline Briggs.

The case of a missing Miami girl brings Vegas CSI Ray Langston from Horatio Caine’s city to Mac Taylor’s.

The CSI crossover begins in Miami when the remains of a girl the CSI team is trying to find are discovered–alongside the remains of a girl who went missing in Las Vegas.

Nick reaches out to a teen boy who is the victim of a brutal beating–and rape.

Hawkes is wracked with guilt after a man he treated while volunteering turns up dead a few hours later.

The Miami CSIs are on the hunt to find a missing groom after his two friends show up dazed and covered in blood in a fountain.

The Vegas team must discover who bludgeoned a popular WLVU football coach to death while he slept.

The CSIs endeavor to get to the bottom of an apparent robbery gone wrong that left a street dancer dead and his girlfriend injured.