Months after its unintentional season 3 cliffhanger ending, NCIS: Hawai’i season 4’s scrapped story is revealed by showrunners Jan Nash, Christopher Silber, and Matt Bosack. Launched in 2021, the latest local expansion series in the evolving NCIS universe introduced Vanessa Lachey’s Jane Tennant and her team who are based in Hawai’i. For three years, they worked on cases on the island, but occasionally, they would work with the Major Case Response Team on MCRT. As with its parent series, NCIS: Hawai’i had become a beloved weekly show for many. So when it was unceremoniously canceled, there was an immediate uproar.

https://screenrant.com/ncis-hawaii-season-4-story-explained-producers/