THE NCIS TEAM INVESTIGATES WHEN AN AMBULANCE CARRYING THE REMAINS OF A MARINE EXPLODES, ON "NCIS," TUESDAY, FEB. 28

"Family Secret" -- The team investigates the mysterious explosion of an ambulance that is supposedly carrying the remains of a Marine killed in a car crash, on NCIS, Tuesday, Feb. 28 (8:00-9:00 PM, ET/PT) on the CBS Television Network. James Whitmore, Jr. directed the episode from a script by Steven D. Binder.

As the team works to confirm the identity of the Marine's remains, they discover the ambulance was rigged to explode and that the DNA of the victim does not match that of the deceased Marine. As Gibbs pushes the team to figure out who the victim is, he discovers that the family of the missing soldier is keeping a secret.

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
Jimmy Palmer: Brian Dietzen
William Danforth: Conor O'Farrell
Corporal Kenneth Miller: Brandon Largent
EMT Seth Patterson: John L. Adams
EMT Jeff Beilsman: Even Helmuth
Dr. Wayne Dobson: Michael Holden
Cynthia Sumner: Stephanie Mello
Corpsman: Jeremy Brandt
NCIS Special Agent Tina Larsen: Ellen Hollman
Sarah: Troian Bellisario

RATING: To Be Announced