The 250th episode of NCIS will likely be intense as Tony DiNozzo's father returns to disclose a secret.

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However, while he's in town to tell Tony his news, DiNozzo Sr. (Robert Wagner) may also have to defend his son during an investigation.

The episode synopsis for "Dressed to Kill" reveals that DiNozzo Sr. will be the only witness to a shooting that involved his son and a now dead perpetrator. The incident occurred after the criminal impersonated a Navy officer and Tony confronted him about it.

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Tony and his father may also have some other more personal drama to deal with on their own. During the 250th episode, Tony will show interest in a new woman but there's one problem - she's already with his father.

"This woman could potentially be Tony's new stepmom, and a big part of the story is her age and the awkwardness that brings to Tony," the show's executive producer Gary Glasberg told TV Guide in January. "Prior to meeting her, Tony tries to find out as much as he can about who she is."

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The young new woman may even cause a rift between father and son, according to the article.

"Dressed to Kill" airs on Tuesday, March 4 on CBS at 8:00 p.m. EST.

Tags: NCIS CBS tv