"NCIS" 250th episode: Watch a sneak peek

"NCIS" is marking a big milestone Tuesday -- it's airing its 250th episode -- and we've got a sneak peek at it.

In the episode, titled "Dressed to Kill," DiNozzo (Michael Weatherly) confronts a man impersonating a Navy officer, guns are drawn and the perpetrator is left dead. The subsequent investigation uncovers that the only eyewitness is DiNozzo's father (guest star Robert Wagner), who is in town to disclose a secret to his son.

Weatherly also tweeted about the night's big episode, calling it "#ncis noir."

The 250th episode of "NCIS" airs Tuesday, March 4, at 8 p.m. ET on CBS. Watch the video above for a preview.