TheexpandedthirdseasonpicksupsixmonthsaftertheeventsofseasontwoandfollowsLt.JoeLeaphornandJimCheeastheyinvestigatethedisappearanceoftwoboys,withonlyanabandonedbicycleandblood-stainedpatchofgroundleftintheirwake.Meanwhile,BernadetteManuelitoattemptstosettleintohernewlife500milesfromhomewiththeBorderPatrol,butstumblesacrossaconspiracyinvolvinghumananddrugsmugglingwithfar-reachingimplications.

　　讲述了有强迫症的男主角奥尔森（乔恩·哈姆 饰）发现了一个秘密房间的故事。