A security guard is found dead after shots are fired at a rap concert. Rapper 10-Large won't talk to the police, but evidence suggests that his bodyguard was the target.
The CSIs investigate the murder of three gun runners who were vaporised by an illegal weapon.
When a small plane crashes on a beach and the pilot dies, it seems that the aircraft may have been sabotaged, with suspicions turning towards the victim's neighbours.
Horatio suspects a sniper is responsible when three people are shot during rush hour. But the team are puzzled when the evidence on a fourth victim doesn't match up.