The NCIS team investigate when a fourteen-year-old teenager manages to foil a home invasion, with Gibbs suspecting that the teenager is hiding something about what happened while Director Vance and Senior FBI Agent Tobias Fornell travel to London as part of the ongoing escaped British spy case.
Prologue
Act One
Act Two
Act Three
Act Four
Major Events
It is revealed that NCIS has a mole within its ranks.
DiNozzo proceeds to follow a lead in Russia to find the remaining target.
Fornell is left severely wounded by an ambush from an unidentified assassin (revealed to be Trent Kort) in Gibbs's house.
Trivia
Abby mentions in the alley that there are 237 days until Christmas, which would put the date at May 2.
Errors
When the team gets to Doyle's RV, Gibbs is seen with his hand on the door handle but in the next shot McGee opens the door.
During the scene of Gibbs and Bishop talking to Swanson about a dirty cop, Swanson's arms are in different positions between shots; switching from being crossed to uncrossed.
When Fornell gets drinks from the fridge, he walks through the same doorway twice.
Senior Special Agent and second-in-command of the NCIS Major Case Response Team. Although he is mentioned a few times, he does not appear in this episode, making this the first ever episode that DiNozzo has not appeared in since making his debut in the JAG Season 8/NCIS backdoor pilot episode, "Ice Queen".
