Sorry CBS cancelled this series. This was a great Season Finale, BUT not an excellent Series Finale! 

All of us (cast, crew, and fans) deserve a better way to say goodbye. Ah, but money talks, doesn't it?

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This is an excellent detailed analysis for this episode. 

This special episode (A Thousand Yards) is the 1,000th original episode of the NCIS franchise, which includes NCIS, NCIS: Los Angeles, NCIS: New Orleans, NCIS: Hawai'i, and NCIS: Sydney combined. It is also the 464th episode of the flagship series, NCIS.