The arrest of a jewel thief puts Peter and Neal, who poses as fence-collector, on the trail of the laundering agent, adoption lawyer Donovan, who extorts adoptive parents with fake claims from biological mothers to pay off his gambling debts with a Russian mobster. Mozzie breaks into Sara's apartment and captures Kate's recording, soon recovered by Sara Ellis and her detectives searching Neal's apartment. After teaming up with the mob, Peter and Neal arrest Donovan. Sara promises, after finding out what happened to Kate, to help Neal with his investigation. The recording reveals that Kate called an unidentified person shortly before the jet exploded, so Neal and friends target whoever was on the other end of the phone.

Peter's quality evening plan for home-cooking stew or his wife again falls out as Peter's big boss needs him to chaperon Neal as only person skilled enough to help John Deckard's US Marshalls team catch FBI agent Jack Franklin, presumed to have gone rogue. Peter wants to give his former colleague, suspected of getting rid of key witness Rebecca Vidal in a mob case, a fair chance. Neal proves himself an even better salesman at the luxury cars dealership where she works, and tracks her down. Franklin comes and surrenders his weapon to Peter, whom he convinces to have been set up by Deckard, the real witness program traitor. Cued by Neal, who even talks the boss out of turning them in, they dodge the fiends, seeking shelter with Mozzie, and go after proof against Decjard, and Neals sets a trap for both him and his mob boss.