TheplottellsofhowanarmedrobberytakesplaceonthebuslineconnectingtheairportwithvariouscitiesinthevicinityofBarcelona.Theupshotisthatthreeassailantsaredeadandonepersonhasanarrestwarrantonhishead,withsixwitnessesunabletoidentifythefugitive.OfficerFranGarza(playedbyPabloMolinero)andhisprofessionalpartner...