It turns out that a network of Colombian mafia, white supremacists and terrorists, have gotten themselves a submarine and loaded it with ammonium nitrate. Meanwhile, Kensi's holiday spirit changes after she receives a surprise Christmas gift. Meanwhile in Afghanistan, Granger is worried when Kensi disappears. Deeks and Kensi decide to try to find a balance but Kensi is reassigned indefinitely. The episode ends with Callen and Sam trapped on board a submarine, with two terrorists, while the rest of the team begin searching for them. Nate and Deeks assist the pair from Los Angeles.
Scott Gemmill May 13, 2014 2014-05-13 523 14. It turns out to be the work of a hacker with evidence leading to a 15-year-old girl. The team start putting the pieces together. Hetty spreads a blanket over Callen while he sleeps. Both Nate the staff shrink and Hetty the operations manager make constructive contributions. Director Vance says that the case of Callen's shooting remains open.
Meanwhile, Kensi and Deeks discuss their relationship when she returns to the field. Scott Gemmill February 4, 2014 2014-02-04 513 16. The team investigate to determine if it was a random crime or a targeted attack due to her father's crackdown on international cyber warfare. Pot Gil Grant April 8, 2014 2014-04-08 519 14. Kaufman November 19, 2013 2013-11-19 508 14. Once they find that person, he admits that he sold the nuclear device to Russia.
Realizing the girl's hacking program has been stolen, Callen goes undercover at her private school to find out who is responsible. Kensi is forced to stay with Eric after returning from Afghanistan, while Nell is teamed with Deeks. Meanwhile, Deeks struggles with his emotions upon returning to the field. In Afghanistan, Kensi sees someone from her past. In Afghanistan, Kensi and Granger are on the case of a helicopter crash.
Wilson March 18, 2014 2014-03-18 516 14. Meanwhile Hetty faces heat for the White Ghost incident. The episode ends with the team covertly stealing it back from the Russian consulate, almost failing and causing an international incident. . Kensi arrives in Afghanistan where she receives her assignment.
Wilson November 12, 2013 2013-11-12 507 14. Sam and Callen attend a party with fireworks, then they pitch a deal to someone who's someone else; the surprises multiply, and the atmosphere becomes tense, but Sam and Callen work things out and return the missing daughter to her distraught mother. Ultimately the team captures her bogus male friend, who conned away the girl's hack phone long enough to sell the intel. Thought to be a terrorist attack, the team is tasked to find those responsible. . .
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