NCIS, the long-running military police procedural, is expanding its Netflix offerings in the US. Starting June 30, Seasons 16 and 17 will join the first 15 seasons already available for streaming. Created by Donald P. Bellisario and Don McGill in 2003 as a spin-off of JAG, the show has become one of the longest-running US scripted dramas. With 467 episodes and counting, NCIS ranks third in longevity behind only Law & Order: Special Victims Unit and the original Law & Order. For fans looking to delve deeper into the series, here’s everything you need to know, including the latest additions on Netflix.