The original band of brothers as they navigate Sheffield and its crumbling healthcare, education and employment sectors, exploring the brighter, sillier and more humane way forward where communal effort can still triumph over adversity.

故事描述女警官Catherine（Sarah Lancashire）带领一个调查组来到约克郡一处偏远的山谷调查一起绑架案，但很快发现案情线索复杂。在一连串多米诺骨牌式的事件发生后，这起案件引出了多起更加严重的犯罪。