• 'NCIS' actors David McCallum, Armando Nuñez, Michael Weatherly, Pauley Perrette, Rocky Carroll, Emily Wickersham, Mark Harmon pose with executives Nina Tassler, Gary Glasberg and David Stapf.

'NCIS' actors David McCallum, Armando Nuñez, Michael Weatherly, Pauley Perrette, Rocky Carroll, Emily Wickersham, Mark Harmon pose with executives Nina Tassler, Gary Glasberg and David Stapf. (Photo : Getty Images/Frazer Harrison)

"NCIS" Season 14 resumes its run with episode 12 airing on Jan. 17 on CBS. The upcoming episode is titled "Off the Grid" and it will see Mark Harmon's character Gibbs go undercover. Here are the detailed spoilers for the next chapter of the series. Read on to find out what happens next. Also, find out where to watch online via live stream. Scroll down for the link.

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[Spoiler alert! This article contains spoilers for "NCIS" Season 14 episode 12 "Off the Grid." Do not read further if you don't wish to know more about it.]

Fans must brace themselves for something unusual is going to happen on "NCIS" Season 14 episode 12 "Off the Grid." According to Cartermatt, fan-favourite "NCIS" agent Gibbs will do something unexpected. He reportedly takes off without informing anyone about his whereabouts. The team is concerned about Gibbs and begins looking for him.

It turns out that Gibbs is doing fine and he has gone undercover for a reason. According to Spoiler TV's description of the "NCIS" Season 14 episode 12, Gibbs comes across the brother of an "NCIS Most Wanted" suspect. In order to catch the suspect, Gibbs assume his former alias and goes undercover leaving everyone worried for him.

Gibbs is not alone in his mission. He will be seen working with one of the infamous anti-government militia. The network has released promo videos for "NCIS" Season 14 episode 12 teasing the events of the upcoming episode. Gibbs tries to contact his McGee with the help of an unknown woman's cell at a gas station. Unfortunately, Gibbs is not able to talk to McGee but McGee makes sure to follow up and find out what's going on. Scroll down to watch the promo video online. Elsewhere, Bishop and Reeves work together on an unofficial investigation.

"NCIS" Season 14 episode 12 airs Jan. 17 at 8:00 pm on CBS. Fans can also watch "Off the Grid" online via live stream on cbs.com. Meanwhile, stay tuned for spoilers and updates on episode 13 "Keep Going."