Thus far, the most iconic crossover in NCISwas in 2023, when three shows came together to give us 3 hours of chaotic and satisfying programming. The three-way crossover involved the flagship show, NCIS: Los Angeles, and NCIS: Hawai'i, where characters we didn't know we needed together gave us hours of laughs and conflicts. But in 2025, it seems like the franchise is trying to one-up its previous success, as CBS announces a two-way crossover (through an Instagram post no less) that will transcend the barriers of time.