Mac and Danny find a Marine corporal dead in Central Park during Fleet Week. Although the man was stabbed to death, he has a conspicuous lack of defensive wounds. Stella, Lindsay, and Hawkes investigate when a body burned beyond recognition, is found in a car. They initially believe the body is that of the car's owner, a male, but the autopsy reveals that the body is female. After Hawkes completes a facial reconstruction of the skull, the CSIs are horrified when they learn the victim's true identity, someone they knew as of Aiden Burn.