After NCIS arrives at a Halloween crime scene, Torres recognizes the victim as a friend from federal law enforcement training. Also, Jimmy thinks his lab is haunted by ghosts after objects keep mysteriously moving.

Dawnmarie Ferrara, Justin Welborn, Kirk Fox, Maria Gibbs, Peter S. Kim, Rhomeyn Johnson, Sal Landi, Scott William Winters, Suzanne Savoy, Todd Anthony, Will Finley