What better way to celebrate the holidays on NCIS: Los Angeles than with a missing Navy Lieutenant Commander, the clock ticking on finding the mole and something crazy happening at the office?

In “Tidings We Bring,” Sam partners with Anna and Callen with Deeks when the team investigates the disappearance of a Navy Lieutenant Commander working with the NSA on foreign cyber threats.

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Watch the very holiday-themed promo for “Tidings We Bring”:

Kensi’s back! (Well, she’s at least in the building while the others are and not just stopping by the shooting range after everyone’s left.) But the case isn’t the big mystery of this preview; it’s what’s going on back at the base.   

Check out a sneak peek as Eric takes the opportunity to rehearse for the Dickens Fair as he summons the team:

They have 30 days to find the mole, and while Hetty may think she’s the only one on the clock, Callen reminds her, “We’re all in this together.” But Hetty’s not worried. After all, sometimes people make the most out of their time when they have the least to spare.

Sam, Deeks and Anna then join them, and Anna’s brought them a gift; she’s going stir-crazy at home, so she jumps at the chance to work a case with them.

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Watch how Sam reacts to a sales pitch:

A woman makes the mistake of trying to offer Sam a shirt that he describes as what would happen if Frosty had a run-in with a snow-blower, but just as she’s dismissing him as someone who can’t be helped because he doesn’t want to be, he shows her his badge. Yes, she was working Saturday at the time a woman came in. She even remembers what she bought, including the men’s socks as a gift.  

NCIS: Los Angeles season 8 airs Sundays at 8/7c on CBS. Want more news? Like our NCIS Facebook page.

(Image courtesy of CBS)