NCIS will air a brand new episode tonight, Nov. 3, called "16 Years" that will delve into Dr. Donald "Ducky" Mallard's (David McCallum) membership into a secret society that solves cold cases.

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Gibbs (Mark Harmon), Eleanor "Ellie" Bishop (Emily Wickersham), Tony DiNozzo (Michael Weatherly) and Timothy McGee (Sean Murray) will be investigating the death of a retired Navy Lieutenant Commander that Ducky actually knows from the secret society.

The NCIS YouTube channel teased two sneak peeks before the seventh episode of the season airs later on.

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In the first sneak peek that is below, Dinohzzo locates a bullet that became lodged in a tree.

"Hey boss," he calls to Gibbs about his discovery before adding, "I found a bullet lodged in this unlucky pine tree."

"Dig it out," Gibbs tells DiNozzo, but he tries to pass it off to McGee, which doesn't fly with Gibbs.

Bishop then joins the conversation, stating, "So if our victim killed himself I guess we're looking at an open and shut case. Quiet day after all."

DiNozzo winds up injuring himself with a cut while digging out the bullet and the quiet day Bishop thinks they'll end up having takes a drastic turn when Ducky announces his connection to the deceased.

"I'm afraid I must recuse myself from this case," Ducky informs Gibbs, further explaining, "Well, because I know far more about this man's murder than I care to admit."

Then, in the second sneak peek clip that is below, Gibbs and Bishop will come in contact with some of the other secret society members.

Walt Osorio (Richard Riehle) introduces himself to Gibbs and Bishop upon their arrival, but Gibbs and Bishop are looking for Judith McKnight (Jessica Walter).

She happens to be present and stands to announce, "Speaking and listening to hear if you have anything worthwhile to say."

There is a bit of sassy banter from Judith then directed at Gibbs, which causes Ducky to jump into the conversation, telling his fellow secret society members that NCIS is "formally taking over the investigation."

NCIS airs on Tuesdays on CBS at 8 p.m. ET.

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NCIS, Television, CBS