Whenafaithfulpolicedogandhishumanpoliceofficerownerareinjuredtogetheronthejob，aharebrainedbutlife-savingsurgeryfusesthetwoofthemtogetherandDogManisborn.DogManissworntoprotectandserve—andfetch，sitandrollover. AsDogManembraceshisnewidentityandstrivestoimpresshisChief(LilRelHowery，GetOut，FreeGuy)，hemuststoptheprettyevilplotsoffelinesupervillainPeteytheCat(PeteDavidson;SaturdayNightLive，TheKingofStatenIsland).Petey’slatestplanistoclonehimself，creatingthekittenLilPetey，todoublehisabilitytodocrimestuff.Thingsgetcomplicated，though，whenLilPeteyforgesanunexpectedbondwithDogMan. WhenLilPeteyfallsintotheclutchesofacommonenemy，DogManandPeteyreluctantlyjoinforcesinanaction-packedraceagainsttimetorescuetheyoungkitten.Intheprocess，theydiscoverthepoweroffamily(andkittens！)tobringeventhemosthostilefoestogether.