AtthebeginningoftheseasonSylviabecomespregnantwithAndy'schild.Ababyboy,Theo,isborntowardstheendoftheseason.ThisiscontrastedwiththefatethatawaitsSipowicz'solderson,AndyJr.,whoannouncesthatheistojointhepoliceforce.Andyisfinallybondingwithhisestrangedsonwhenheisgunneddown,whichleadstheelderSipowicztofalloffthewagon.AndyJr'smurderersarekilledthemselvesbySimoneinanactofselfdefense.
BobbyandDiane,whoserelationshiphadbeenputonholdwhilesheattendedAA,resumetheirrelationshiponlyforDianetobegindrinkingagainwhenherabusivefatherbeatshermother.Herfatheriseventuallykilledandhermotherbecomestheprimesuspect.
JamesMartinezandnewdetectiveAdrienneLesniakbeginanaffairbutonlyafterLesniaktellsMedavoythatsheisgay,thenthatsheisnot;Martinezlaterbreaksupwithherduetohercontrollingandunpleasantbehavior,andLesniakeventuallyleavesthesquad.Medavoyhimselfleaveshiswife,recognizingthatsheisholdinghimbackbutitistoolatetosavehisrelationshipwithDonnawholeavestotakeupajobwithApple.