第二季中，侦探杜尔西·柯林斯（凯特·波克斯 Kate Box 饰）和埃迪·雷德克利夫（玛德琳·萨米 Madeleine Sami 饰）将前往澳大利亚的Top End地区。她们起初在达尔文调查雷德克利夫前任警务伙伴布什的死亡案件，然而在一个偏远小镇发现了两名Top End知名人士的尸体，这开启了一场“更紧张、更棘手”的新调查。
The second series of After the Flood finds newly promoted detective Jo Marshall on the trail of a baffling murder investigation. As tensions simmer in Waterside amid the rising threat of moorland fires and the subsequent risk of further flooding, a body is discovered in bizarre circumstances. Jo's race to stop the killer will put her in opposition to dark, influential forces within the town, and ultimately take her on a much more personal investigation. One that will require her to operate in secret if she is to have any hope of rooting out the corruption that has blighted the town's police force - and her own family - for decades.
