NCIS: Season 12 Episode 4: Choke Hold
Starring: Mark Harmon, Michael Weatherly, Pauley Perrette, Sean Murray, Brian Dietzen, David McCallum, Brian Dietzen, Lev Gorn
Length: 44 minutes
NCIS: S12E04 Description: After a scientist is decapitated by a strangulation device in a park, Gibbs and his team search for the woman who was her former research partner in Russia in order to learn who is behind her murder. They learn it may be a familiar foe.