NCIS: Los Angeles

CBS | 9:00 pm

In the new episode "Concours D'Elegance," the team's investigation into a stolen undersea drone prototype eventually links the theft to an elaborate party thrown by a video game streamer. Elsewhere, Callen and Sam (Chris O'Donnell, LL Cool J) find themselves once again crossing paths with insurance broker Katherine Casillas (guest star Moon Bloodgood), who handles coverage for the gamer's property and possessions. Michael Drayer also guest stars; Daniela Ruah, Eric Christian Olsen and Barrett Foa also star.