Season five of Murdoch Mysteries opens in unfamiliar territory, as Detective William Murdoch (Yannick Bisson) leaves Toronto to try his luck while the Klondike Gold Rush in the Yukon winds down. Suspended for interfering in an investigation, on the run for surreptitiously freeing a murderer to make amends, and nursing a broken heart after Dr. Ogden's marriage to another man, he tries to escape his past, and his passion for detective work. Back in the city, newly promoted Chief Constable Giles (Nigel Bennett) makes it clear to Inspector Thomas Brackenreid (Thomas Craig), that he'll be keeping a very close eye on police matters. Meanwhile, Murdoch's beloved former associate, Dr. Julia Ogden (Hélène Joy), is now working alongside Acting Detective George Crabtree (Jonny Harris) and Dr. Emily Grace (Georgina Reilly), a feisty young protégé. In the remote north, Murdoch is pleased to discover that his fledgling prospecting career may garner great success, a small comfort after Julia's marriage to another man. But as he tries to rebuild his life, he finds himself drawn into the case of Mrs. Elizabeth Bryant (Jill Halfpenny), an innkeeper charged with murder. The plot thickens when writer Jack London (Aaron Ashmore) lends his insights, and Murdoch soon realizes that while he had hoped to leave his shattered heart and tattered career back in Toronto, his days as a detective are not behind him.
洛奇(保罗·纽曼 Paul Newman 饰)出生在位于纽约的一个非常贫困的家庭之中,他的父亲曾经梦想成为一名拳击手,但可惜窘迫的生活条件让这个梦想最终化为了泡影,于是,这个失落的男人只能整日生活在郁郁寡欢之中,靠着酒精排遣内心的不满。 荷尔蒙爆棚的洛奇整天在大街上打架惹是生非,这让他和父亲之间的关系变得非常的糟糕。某日,洛奇得到了军中长官的赏识,在长官的鼓励之下,他决定去拳坛一试身手,因此意外发现了隐藏在基因里的天赋,从此走上了拳击的道路。拳击不仅拯救了洛奇,以化解了他和父亲之间长久的仇恨。