It returns six months after the shocking finale of Season 3, and the team must overcome their grief to tackle a dangerous crime wave. This time, the gloves are well and truly off for Professor T in his lectures and a new musical pursuit, romance is very much alive for his mother Adelaide Tempest (De la Tour), and the lines between professional and personal become blurred for therapist Helena Goldberg (Stevenson). Meanwhile, DI Maiya Goswami (Sunetra Sarker) takes charge of the police force with series favorite DS Dan Winters (White) fiercely at her side.
演员：奥利维亚·罗德里戈 约书亚·巴塞特 马特· 科耐特 索菲亚·怀利 Larry Saperstein Julia Lester Dara Renee 弗兰基·A·罗德里格斯 乔伊·塞拉费尼 马克·圣·西尔 Kate Reinders 梅格·唐纳利 科宾·布鲁 奥利维亚·罗斯·基根 杰森·厄尔斯 阿里娅·布鲁克斯 Ben Stillwell