Images and an official description with spoilers for the December 23, 2011 episode of NBC's Chuck.

NBC has released some images from the December 23 episode of Chuck, which is called “Chuck vs. the Santa Suit.”

They have also put out an official description for the episode, which you can find below the images.

Stan Lee guest stars!! – but, sadly, we have no photos of that.

NUP_146736_0307.JPG

Picture 1 of 4

CHUCK -- "Chuck vs. The Santa Suit" Episode 507 -- Pictured: (l-r) Zachary Levi as Chuck Bartowski, Bonita Friedericy as Gen. Diane Beckman -- Photo by: Mike Ansell/NBC

GHOSTS OF CHRISTMAS PAST RETURN TO HAUNT CHUCK AND SARAH WHEN OLD SECRETS AND THREATS RESURFACE — COMIC BOOK LEGEND STAN LEE GUEST-STARS — Chuck (Zachary Levi) and Sarah (Yvonne Strahovski) discover who’s behind the plot to destroy Carmichael Industries. Meanwhile, Ellie’s (Sarah Lancaster) plans for a perfect Christmas begin to come apart. At the Buy More, Morgan (Joshua Gomez) and the gang must fend off angry customers as a computer virus threatens to ruin Christmas. Adam Baldwin, Ryan McPartlin, Vik Sahay, Scott Krinsky, Mark Christopher Lawrence and Bonita Friedericy also star.

Craig Byrne, Editor-In-Chief

KSiteTV Editor-In-Chief Craig Byrne has been writing about TV on the internet since 1995. He is also the author of several published books, including Smallville: The Visual Guide and the show's Official Companions for Seasons 4-7.