Six months have passed since Dr. Ogden moved to Buffalo and Det. Murdoch is constantly a loggerheads with Dr. Francis, her replacement. While Insp. Brackenreid thinks highly of Francis, who was recruited from Scotland Yard, Murdoch finds him stubborn and unimaginative. He also seems to be in no rush to help Murdoch with his latest case where human body body parts were discovered on a riverbank encased in cement. A homeless man living in the woods nearby is questioned and released and Murdoch corresponds with Dr. Ogden who offers him valuable advice in her letters. He also gets help from a retired detective, Malcolm Lamb. Murdoch connects his current investigation a rape and murder that had occurred many years before.电视剧《血符》改编自真实故 事，故事再一次聚焦到抗日战争时 期，该剧以一群性格迥异、各执目的 的农村底层小人物集结在一起，共同 营救、转移抗战国际友人为主线。讲 述了美国飞虎队员本尼达远赴中国帮 助抵抗日军侵略，在一次空战中被日 机击落身负重伤。日军为得到美军情 报，在飞机失事地区展开疯狂搜捕。 在当地群众、游击队和新四军五师的 联合营救下，艰难而又机智的突破了 日军的一道道封锁线，最终将飞虎队 员本尼达顺利转交到前来接应的部队 手中。在展开营救的行动中，中国人 民及新四军舍身忘死保护重伤在身的 本尼达。呈现了他们在营救国际友人 路上的经历与成长蜕变。
