A traffic accident changed their lives forever. In capturing wanted criminal Zhang Yidong, Sergeant Tang Fei was involved in a gunfight and car accident that put the criminal in a coma. But in the process, he also crippled a fellow officer and mistakenly shot dead the elder daughter of a public prosecutor and single mother Gao Min. Unable to handle the guilt, Tang Fei succumbs to a fog of pain. Gao Min,
