"NCIS: Hawai'i" Season 3 is set to premiere on February 12, 2024, following the airing of "NCIS" Season 21. The show will air on CBS and will also be available for streaming on Paramount+. The cast for Season 3 is expected to remain mostly the same, with the addition of LL Cool J from "NCIS: Los Angeles." The overarching story for the season is speculated to involve the main character, Jane Tennant, tracking down her fugitive former mentor. The executive producers and crew members are also expected to return for Season 3.