1: NCIS stars celebrate 1000th episode

2: Special crossover event with NCIS: LA

3: Mark your calendars for this epic event

4: Gibbs and team join forces with Callen and co.

5: Explosive action and thrilling suspense await

6: Fans can't miss this milestone moment

7: Exciting surprises in store for viewers

8: NCIS and NCIS: LA unite for unforgettable TV event

9: Don't miss the crossover event of the season