Two park rangers find the burned body of LCdr. Brad Sayers, a Navy test pilot on leave, on the site of a recent fire in a forest in the Appalachian Mountains in West Virginia; Gibbs and company investigate; McGee sees evidence that Brad tried to fly a jetpack, and that it exploded. Gibbs places McGeek in charge. Palmer finds clues inside a dead squirrel, and Abby confirms them. Tony and Ziva interview a builder of jetpacks, and Ziva snaps a portrait; McGee learns about the builder's ex-wife, who's also the builder's top competitor; McGee questions the builder, then the builder's high-power lawyer shows up, starts talking, and keeps on talking. Ducky suggests an interesting alternate explanation, then Gibbs shows a piece of paper. The gang put the pieces together, and Tony brings in the bad guy by remote control. Gibbs notices the left hand of the lady lawyer; he concludes that someone else sent her there.