MCGEE PUTS HIS NCIS CAREER ON THE LINE TO HELP HIS SISTER WHEN SHE APPEARS ON HIS DOORSTEP BLOODIED AND DISORIENTED, ON A REBROADCAST OF "NCIS," ON A SPECIAL NIGHT AND TIME, SATURDAY, DEC. 8, 9:00-10:00 PM, ET/PT

"Twisted Sister" - Forgoing NCIS procedure, McGee risks his career when he takes matters into his own hands after his sister appears at his door bloodied and confused, on a rebroadcast of NCIS, on a special night and time, Saturday, Dec. 8 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Terrence O'Hara directed the episode from a script by Steven D. Binder. (Originally broadcast 11/21/06)

As McGee struggles to piece together his sister's whereabouts the night before, he discovers that the NCIS team is investigating the murder of a Navy sailor who had a previous relationship with his sister. Meanwhile, as separate clandestine romantic relationships bloom for both Abby and Tony, the NCIS team discovers McGee has a secret of his own.

SERIES REGULARS:

NCIS Special Agent Leroy Jethro Gibbs: Mark Harmon
NCIS Special Agent Anthony DiNozzo: Michael Weatherly
Dr. Donald "Ducky" Mallard: David McCallum
Abby Sciuto: Pauley Perrette
NCIS Special Agent Timothy McGee: Sean Murray
Ziva David, Mossad Liaison: Cote de Pablo
NCIS Director Jenny Shepard: Lauren Holly

RECURRING CAST:

Jimmy Palmer: Brian Dietzen
NCIS Special Agent Michelle Lee: Liza Lapira
Jeanne Benoit: Scottie Thompson

GUEST CAST:

Sara McGee: Troian Bellisario
Carolyn: April Matson
Madison: Katherine Bailess
Officer Samuel Tate: John Cabrera
Jordan Block: Fidel Gomez

RATING: TV14-L