Before watching Episode 500, NCIS fans may want to revisit Season 1, Episode 2: “Hung Out to Dry.”
The case centered on a Marine whose parachute had been sabotaged — but the real heart of the story came afterward, when Gibbs reassured the Marine’s son and helped finish a treehouse left incomplete by his father.
Now, Episode 500 introduces a Marine’s son connected to Gibbs’ past, leading many viewers to believe the milestone installment could revisit that powerful storyline from the show’s earliest days.