"NCIS" star Rocky Carroll (Leon Vance) knows that people are going to be asking, "What the hell just happened?" after "NCIS" Eps. 500. Spoilers!

NCIS Season 23 returned from its two-month hiatus this week, with the tenth episode, "Her," airing on CBS. Fans are hyped for this specific episode because it features the return of the former NCIS ...

With its 500th episode, which features a major character death, the show ranks among the longest-running scripted, ...