When Dave decides to disconnect the Johnson home from the grid, he inadvertently causes a community-wide power outage, much to Calvin’s frustration. Also, in the wake of Marty’s engagement, Tina…

Luka Kovac arrives safely at County General and is hospitalized for treatment. His friend Gillian delivers John Carter’s letter to Abby.

Callen, Sam, Kensi and Deeks join Hetty’s team from the Vietnam War, Sterling Bridges, A.J. Chegwidden and Charles Langston, in a dangerous and off-the-books rescue mission to save Hetty from…