Neal and Peter must go undercover into the world of corporate espionage after a tech company's head researcher is murdered.

Wesley Kent's microchip firm's head researcher Joseph Hayes is murdered by poisonous overdose, presumably on account of his revolutionary invention. The duo goes undercover, but due to his major, Peter now gets the cushy alias of pampered rating agency accountancy expert. Neal joins the competitive junior executives in a cubicle, but gathers no less information there. After Mozzie discovers Peter has the music-box, he must accept to continue the Kate investigation officially, with a stuck-up FBI agent as equally unamused partner.

Mozzie was shot by a hit-man but surgery saved him. Neal agrees to go by the FBI book to see the hit-man, soon identified as Julian Larssen, and whoever hired him caught and punished. Larssen is suspiciously easily arrested after the forgers help burn his known aliases except one, but somehow managed to plant false evidence pointing to Burke as the killer. That suffices for Peter's suspension from the FBI, leaving only Neal's ways.