Callen and Sam join forces with Anna Kolcheck and the Bureau of Alcohol, Tobacco and Firearms (ATF), when Arkady Kolcheck warns NCIS that a notorious international weapons dealer has returned to the states. Also, the case requires Eric to go undercover as a bank IT technician.
Elenco: Chris O'Donnell , LL Cool J , Daniela Ruah , Linda Hunt , Barrett Foa , Eric Christian Olsen , Renée Felice Smith , Miguel Ferrer , Medalion Rahimi , Caleb Castille , Nia Long , Gerald McRaney , Adam Jamal Craig , Peter Cambor .