介绍：本季延续前作框架，围绕科尔特·肖（贾斯汀·哈特雷饰）及其团队追踪悬案、破解谜题展开剧情融合犯罪调查与寻宝冒险，通过团队协作揭露隐藏在黑暗机构中的势力。编剧在本季中加强了叙事力度。

介绍：The series begins when suspected human remains are uncovered on Whitney Marsh - Jess and Sunny are immediately called to the scene, abandoning their evening plans to Jess’s husband’s chagrin. Dr Balcombe’s analysis reveals that the remains are relatively recent and suggest a grim conclusion the body was placed there already dismembered. With this insight, Jess and Sunny intensify their search certain that other body parts may not be far away.　　As the investigation unfolds, viewers are introduced to a diverse new cast of characters Melinda Ricci, an outspoken television commentator based in Ireland; Martin ‘Marty’ Baines, an autistic man living with his mother Dot in Deal, Kent; Asif Syed, an Afghan training for his UK citizenship test; and Juliet Cooper, a history lecturer and faculty head at a London university.　　While these characters live seemingly separate lives, they are intricately connected by their pasts. It’s up to Jess, Sunny, and their dedicated team to uncover these hidden links and ultimately expose the truth behind the cold case murder.