NCIS: Los Angeles

Season 12, Episode 17

Episode Title: Through the Looking Glass

Air Date: 2021-05-16

Overview:

When a Naval Intelligence Officer is tortured and murdered, NCIS must work with Joelle, who informs them that other CIA operatives are being killed in the same way. Also, Kensi receives a threatening postcard from David Kessler, the sociopath who is obsessed with her.