After catching an international arms dealer, the NCIS team learns that Navy's highly classified weapons system will be sold to "La Grenouille," an important arms dealer. To stop the transaction, the team will send Ducky undercover. Meanwhile, another... (more) government agency appears to be working on the same case, with different plans.

Armand Assante, Assaf Cohen, Corey Stoll, David Batiste, David Dayan Fisher, Jim Parrack, Sandra Hess