在泰国海边渡假胜地芭达雅，韩国兄弟泰京和在熙住在一所高级别墅裡，哥哥泰京因身怀重症到泰国养病，弟弟在熙则陪同照顾他，年轻男子旻杰的突然造访，却打乱他们的平静生活。原来在熙服役时认识了旻杰的哥哥旻勳并与他交往，在熙退伍后，旻勳在军中受到霸凌而选择自杀，旻杰对此耿耿于怀，于是前往泰国寻找在熙。

Detective Murdoch finds that the man behind a flying machine that crashes in Toronto is none other than his old nemesis, James Pendrick. He learns that Pendrick is hoping to win a $1 million prize for the first controlled flight. A body is found in the rubble of the crash but someone is clearly out to steal his invention. Murdoch also has to deal with Ottawa-based spymaster Terence Meyers who says it's all a national security matter. Meanwhile, Julia returns from Vienna intent on practicing psychiatry. She's also hoping to have her marriage to D'Arcy annulled.