Wolf (Donnie Yen) is a war veteran who tells a young upstart killer the story of his legendary youth (Edmond Leung). Flashback to a time after World War II, when the young Wolf (Yen) is wandering the Chinese countryside in search of his lost memories. He only knows he needs to meet someone at an abandoned temple. He eventually meets a local villager (Dayo Wong) who agrees to guide the Wolf to his destination. On the way, they come across Wai-Yee (Carmen Lee), who has been waiting for Wolf for quite some time. However, Wolf is still unable to recall anything until the bad guys (led by Ben Lam) come to find him and reveal the terrible secret of the Wolf's past.