An adolescent boy lives in Detroit after World War II with his Polish immigrant mother Olona and his late father's brother Izzy, a former soldier. Izzy likes to tell Chester stories of his father's military days, especially about he served alongside Wojtek, a legendary soldier bear. Chester is the only one who believes the tales and his unwavering faith sets him off on a road trip to uncover the truth and confirm Wojtek's existence.

　　本剧根据高级调查官史蒂夫·威尔金斯与ITV新闻记者乔纳森·希尔共同撰写的纪实文学改编，讲述了1980年代有两起未解决的双重谋杀案。2006年，新上任的督察长史蒂夫·威尔金斯(卢克·伊万斯饰)决定再度调查这两起案件，采用了现代法医调查方法，利用DNA等线索，将两起谋杀案与一系列的盗窃案联系在一起。在这些盗窃者即将刑满释放前，史蒂夫团队能否找到足够的证据来指控嫌犯呢？