Twisted Sister

Episode Number: 79 Season: 4 (Disc 3)
Original Air Date: 11/21/06
Director: Terrence O'Hara
Written By: Steven Binder
Edited By: Gregory Gontz

Blurb: McGee takes matters into his own hands after his teenage sister appears at his door bloodied and confused.

Cast:
Mark Harmon
Michael Weatherly
Pauley Perrette
David McCallum
Sean Murray
Cote de Pablo
Lauren Holly
Scottie Thompson

We meet McGee's sister for the first time.We find out about McGee's books for the first time. Gibbs smacks McGee on the head.