One Shot, One Kill

When a marine recruiter is killed, the NCIS team quickly discover that a highly intelligent and skilled sniper was behind the attack. Initially, the team believes the sniper had a grudge against the recruiter, but when a second attack occurs the investigation takes on a wider scope and as a result, the FBI are called in, bringing Gibbs into direct conflict with the FBI's team leader. When Gibbs notices that the sniper left a "calling card" in the form of a white feather at each scene, he realizes that the sniper was probably meeting the recruiters before the shooting took place. Hoping to lure out the killer, Gibbs dons his old Marine uniform and takes over the recruitment office with Kate, his new "commanding officer", co-ordinating with DiNozzo and assisted by an FBI team.