Revealing mistake: While Ellie and George are in the attic, Ellie uses her laptop to access contact info and gets Richard Doogan's DOD military service record. There's a closeup of the laptop screen as she begins to read aloud, but the problem is part of the paragraph reads, "And he's only a few hours away in Kansas..." and especially "I need to update Gibbs" which are Ellie's lines in the dialogue with her brother. (00:16:45)

NCIS: Naval Criminal Investigative Service (2003)
1 revealing mistake in Blood Brothers - chronological order
Starring: David McCallum, Lauren Holly, Mark Harmon, Michael Weatherly, Pauley Perrette
Yankee White - S1-E1
Factual error: Air Force One landed in Wichita, Kansas. The local coroner claimed Jurisdiction for Wichita County. The city of Wichita, Kansas is in Sedgwick County, in southern Kansas. Wichita County, Kansas is in western Kansas, about 250 miles from the city of Wichita. (00:05:40)
Yankee White - S1-E1
Gibbs: I heard you quit, Agent Todd.
Kate Todd: Happy news travels fast. Yes, I resigned. It was the right thing to do.
Gibbs: Yep. Pull that crap at NCIS, I won't give you a chance to resign.
Kate Todd: Is that a job offer?
Question: Before she joined NCIS, how long was Kate with the Secret Service?
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Chosen answer: It is never stated, however she must have been there several years if she is on presidential detail.