TheplottellsofhowanarmedrobberytakesplaceonthebuslineconnectingtheairportwithvariouscitiesinthevicinityofBarcelona.Theupshotisthatthreeassailantsaredeadandonepersonhasanarrestwarrantonhishead,withsixwitnessesunabletoidentifythefugitive.OfficerFranGarza(playedbyPabloMolinero)andhisprofessionalpartner–andex–RebecaQuirós(AnaPolvorosa)suspectthatthewitnessesarenottellingthetruth:theyallclaimnottohaveseenthekiller’sface,buteverythingpointstothemhavingmadeapactofsilencetoprotectthepersonontherun.Soonenough,thecasegoesviral,andpublicopinionswingsinsupportofthecriminal,usingthehashtag#YouWouldDoTheSamebbb