Whileinvestigatingadrug-traffickingapp,“MonsterCop”MaSeok-doandhisteamdiscoveraconnectionbetweentheapp’sdeveloper,whowasmurderedinthePhilippines,andanillegalonlinegamblingorganisation.Meanwhile,inthePhilippines,BaekChang-giiscontrollingtheKoreanonlineillegalgamblingmarketandspreadingterrorwithkidnap,assaultandmurder.Hispartner,theITgeniusChangDong-cheol,isplanninganevenlargerschemeinKoreaitself.Toputanendtotheescalatingthreat,DetectiveMaexpandshisoperationbyproposinganunexpectedalliance