剧情：
Will’slifehaschangedforthebetter.Heishappilymarriedtothebrilliant,Bonnieandduetobecomeafatherbuthisworldisabouttoberockedbyaterribleaccident.He’salwayspreachedthewordofacompassionateGod–buthowcanhenow,whenhisdespairleadshimonadangerousdownwardspiral.GeordiehasfoundanewcontentmentinhisrelationshipwithCathybutwhentheyarebothconfrontedwithshockannouncementsatworktheirnew-foundhappinessisthreatened.AsMrsC,Leonard,JackandDanielrallyaround,bothWillandGeordiefindthemselvesinunfamiliar,emotionalwatersandmurderisalwaysaroundthecorner.SerieseightofGrantchesterwillrangefromspeedwaytospies,exploringthelivesofinvisiblewomenandtheveryvisibleproblemscausedbyLeonard’snewvocationwhichmay,onceagain,findhimbattlingthelaw.Exploringfaith,forgiveness,andredemption–thisexplosiveseriesofGrantchestertestsWillandGeordietothelimit.
