On a freeway during a morning commute a Marine staff sergeant, Marcos, dies in an explosion of an SUV; Callen and company investigate; Marcos was a combat engineer who specialized in demolition. TV-news footage reveals nearby a suspicious car, which leads to Winslow, a person of interest. Hunter makes changes; G speaks with her. Sam and Deeks encounter a runner and a bomb; the man talks, but Nell and the guys catch him in his lies, then he tells about four bombs and one target; G and Kensi check out an empty pad, and Sam uses duress to negotiate a deal; Winslow hires a professional to fix his devices; G has another chat with Hunter. A good plan takes an unexpected left turn, but a remorseful man speaks up; then three bombs explode, yet all the gang escape. Nell abruptly discovers Winslow's missing girlfriend, who disappears, as does Hunter. Hetty returns to her office, where she invites G to sit down, then she starts to tell G what she knows about his background.
Did You Know?
Callen and Nell pull up a photo on the computer. The photo loads very slowly, and from the bottom up, neither of which is remotely realistic in the ops center. See more
Took you down, didn't I?
Yeah, I was impressed. No one's ever beat up the soles of my shoes with his face like that.