OfficerJohnCooperreturnstodutyafterrecoveringfrombacksurgeryandmeetshisnewpartner,OfficerJessicaTang,atoughanddisciplinedcopwithherownsetofbaggagefromworkingthestreets.Lydia,whosenewpartnerisRubenRobinson,can'tseemtoescapehelpingaformerCIwhowon'tstayinsafety.Ben,SammyandDeweychaseanarmedmanintoanelementaryschool,whileBenbumpsheadswithanintensestreetcopwhosecynicalattitudeisaffectingtheirwork
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