1: "How Many NCIS Shows Are There?" Introduction to the various NCIS spin-offs.

2: "NCIS: The Original Series" Details on the original NCIS show.

3: "NCIS: Los Angeles" Information on the NCIS LA series.

4: "NCIS: New Orleans" Overview of the NCIS NOLA spin-off.

5: "NCIS: Hawaii" Introduction to the newest NCIS show.

6: "NCIS: Red" Brief summary of the NCIS Red series.

7: "NCIS: Technology" Details on the technological aspects within the NCIS universe.

8: "NCIS: Storylines" Exploration of the different storylines in NCIS shows.

9: "NCIS: Future" Speculation on potential future NCIS spin-offs.