《重案组女警第四季》是由莱斯利·夏普,苏兰·琼斯,阿米莉亚·布摩主演的一部欧美片，JanetispromotedtosergeantbutstepsdowntogiveittoRachelasshefeelssheisneededmoreathome.ThepairjointhesearchforeighteenyearoldRobinMcKendrick,asimpleladreportedmissingbyhisboss,landlordJohnRivington.PubregularsareunforthcominguntilaboycalledJohntellsJanetthatanex-soldierknownasJackie-BoylockedRobininhiscarbootasacruelprank.Helaterreportedthecarasstolen.AnotherwitnessclaimsthatJackie-BoydumpedhiscarinaquarrywithRobinstillintheboot.IntheprocessoftheinvestigationGillidentifiesanotherbodyfoundintheriver,thatofMandySweeting,whodisappearedtwodecadesago.