Gibbs shadows Agent Lee meeting with the contact to whom she's passing military secrets. Meanwhile, DiNozzo and David follow the trail of Lee's kidnapped daughter. So as not to spook Lee's controller, Gibbs and McGee convince Director Vance and SecNav the real U.S. military playbook, code name Domino, is in play. These plotlines connect to a larger scheme to unbalance the world's economy, and everything climaxes in a shootout between Gibbs and Lee's controller, with Lee as human shield.
Kudos again to the writing staff seamlessly adapting NCIS for a spy plot and crafting a rich final arc for Liza Lapira.