BrusselsLeo,aSpanishmetrodriver,whileconductinghistrainandarrivingatastation,seesayoungmanindistressontheedgeoftheplatformHerecognizeshissonHugorightbeforehefallsontotherailsandthendiesatthehospitalLeo,whohadnotseenhissonforyears,willdiscoverthathewasinvolvedinabloodyheistWhileonthetrailofhisson’smurderers,Leowillbecloselywatchedbythepolice,alsoinvestigatingTheywillsoondiscoverthatLeo’sskillsintrackingandapprehendingviolentcriminalsarenotthoseofameremetrodriver