Robert Wagner returns as Tony's father on next week's NCIS Christmas episode.

In an installment that can only mean some classic awkward moments between the veteran actor and Michael Weatherly's beloved special agent, we'll also get to see where DiNozzo Jr. lives for the first time ever.

Why he's in town or what we'll find out about him this time remains to be seen.

Meanwhile, the NCIS team is “following the money” in order to solve the weekly murder investigation, and to the surprise of no one, Abby Sciuto is bursting with excitement over all the holiday festivities.

Watch the promo for the aptly-titled "You Better Watch Out" below ...

If you missed it, check out our NCIS review for a rundown of Tuesday's episode, "Devil's Trifecta," which featured another pair of recurring guest characters in Fornell and Diane, his and Gibbs' ex-wife.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.