Watch Ncis S01e (21) May 2026

: While it initially looks like an accident, Ducky determines the Marine was killed by a shoulder-launched assault weapon before being placed on the stump.

: A group of teenagers filming a stunt find the body of a Marine ordnance specialist in the forest.

: Gibbs and Tony go undercover to infiltrate a local militia and track down stolen military weapons being sold on the black market.

as Jimmy Palmer , making one of his earliest appearances as Ducky's new assistant. Sam Witwer as Staff Sgt. Rafael. Where to Watch