"NCIS" season 11 is celebrating the holidays with next week's episode 11, "Homesick," and on Tuesday, Dec. 10, CBS released a new sneak preview teasing what this year's Christmas episode brings.
In this next "NCIS" episode, a mysterious illness strikes children from military families, and the case goes to Gibbs (Mark Harmon) and his team. What's causing this illness? Abby (Pauley Perrette) and Jimmy (Brian Dietzen) – don't you just love when those two work together? – partner with the Naval Medical Research Center to determine the strain of illness in hopes of finding a cure before the holidays. Plus, Meredith Eaton returns as Carol Wilson.
Also, Director Vance (Rocky Carroll) struggles with forgiveness when he gets a holiday surprise when his estranged father-in-law (Ben Vereen) shows up at his home.
The "Homesick" promo offers a look at both parts of the episode. While Abby's all dressed up for the holidays (just like you'd expect) and Tony (Michael Weatherly) seems to be getting into the Christmas spirit, the focus is going to be figuring out what the mystery illness making kids very sick is.
Meanwhile, the Vance family has decorated for the holidays, but when Vance's father-in-law, Lamar, shows up, Vance tells him he has no business coming there. According to the promos, he's "a mystery man" and his kids don't seem to know their grandfather, so get ready for some family drama for the holidays.