世界上最大的养牛场没有明确的继任者，而代际冲突可能会导致劳森家族的分裂。察觉到这个曾经盛大的王朝正在衰落后，澳大利亚内地最大的几伙势力（敌对的牛业大亨、沙漠匪徒、土著长老和亿万富翁矿工）纷纷行动，想要一举拿下。

2022 年 2 月 16 日，海军罪案调查处宣布将推出第四部衍生剧，故事背景设定在澳大利亚悉尼，该剧将在澳大利亚十频道播出，并在 Paramount+ 上播放。Shane Brennan 已宣布担任该剧的制作人。

On February 16, 2022, the fourth spin-off series of NCIS set in the Australian city of Sydney was announced, to be shown on the Australian Network Ten, and streamed on Paramount+. Shane Brennan has been announced as the showrunner.

CBS has picked up NCIS: Sydney for a second season. The procedural will also return for a second year on Paramount+ Australia.