Ep 19. Perennial

In the NCIS season 16 episode 19 titled "Perennial", Gibbs and the rest of the NCIS team investigate a case involving a Marine who was found dead in a stairwell at a photography exhibit. As they dig deeper into the case, they discover that the Marine, Lance Corporal Daniel Felton, was involved in some questionable activities before his death.

Through their investigation, the team learns that Felton was part of a group of Marines who were hired as security for the photography exhibit. While on duty, Felton and his fellow Marines stole an expensive camera from one of the exhibit's vendors. However, the camera was later stolen from them, leading to Felton's death.

As the team investigates further, they discover that the theft of the camera is linked to a larger crime ring involving stolen art. The team must work to uncover the truth behind Felton's death as well as the larger crime ring before more lives are lost.

Throughout the episode, viewers are taken on a journey through the investigation process as the team pieces together clues and interviews witnesses. Along the way, they encounter several interesting characters, including the exhibit's curator and the vendors whose items were stolen.

As always, the NCIS team must work against the clock to solve the case before more lives are lost. Along the way, viewers are treated to impressive forensic work and intense action scenes. The episode also explores the theme of right and wrong, as the team must grapple with the fact that some of the Marines involved in the crime were good people who made bad decisions.

Overall, "Perennial" is a gripping episode of NCIS that will keep audiences on the edge of their seats. With its engaging plot and strong character development, it's a must-watch for fans of the show and anyone who loves a good crime drama.