While Rose, the medical examiner, conducts a postmortem exam, two intruders blow away her assistant and steal the corpse and a van, but Rose evades; she calls the Callen team, who investigate because of an apparent Navy connection with the body. Kensi and Deeks check out the abandoned van; inside they find something exciting; they also see the victim's pad and his girlfriend. A Navy commander briefs the team about a highly classified new system for tracking people; he assures them that it does not exist anywhere inside ConUS, but suddenly it does exist and function in Los Angeles. While Kensi and Deeks watch a mosque, they see a suspicious man, then follow him, as do G and Sam, who next make a gruesome discovery inside a hospital, and G does a gruesome task; Eric and Nell continue to produce; Deeks takes a swim; the team figure out the puzzle, and they catch two bad guys; more are missing, along with some nuclear material, but Hetty says that that's tomorrow's work.
Did You Know?
Rose shows Callen a picture of herself and Nate Getz to Callen. First time Nate's image has been shown, since the character left. See more
Dead men don't walk.
Not unless it's Halloween.
Maybe someone should tell Yusef Afzal it's not Halloween.