McGee drives Gibbs home (because of Gibbs's wounded shoulder), then inside his pad he finds an intruder, one whom he knows, Damon, who tells him about the death of a fellow Marine. Gibbs calls McGee, who returns and picks up Gibbs and Damon, then they find the body (with a slit throat), and McGee calls the Metro PD. Damon tells about the involvement of the victim with a suspicious trucking operation. They pick up Fornell and meet Tony, Ziva, and Ducky at the scene. Gibbs agrees for Damon to infiltrate the trucking firm; Damon and Ziva pose as truckers, and they start a trip; Gibbs and Fornell tail in Gibbs's car, and Tony and McGee try to do so in a van. Along the way the gang put the pieces together. Gibbs and Fornell meet a man who provides answers, then they rendezvous with not only Damon and Ziva but also two of the bad guys. Later, back in the evidence garage, Gibbs and Fornell pinch the third bad guy. Damon heads out to meet the widow.