零下三十八度

The film tells the story of two brothers, Hong Da (洪达) and Hong Yu (洪宇), who both serve in a secret anti-drug squad of the Kaniya military. During a drug sweep operation on the Southeast Asian border, they are ambushed by the cunning drug lord Gong Tai (贡泰). Hong Da, who is about to become a father, sacrifices himself to protect his younger brother Hong Yu.

Liu Haiyang and Song Chao were best friends at Police Academy. After witnessing his trusted friend escape after the murder of his father, Liu Haiyang embarks on a quest for bitter revenge that takes him from Harbin to Hainan, only to uncover an illicit relationship between his wife- Chu Jie and his best friend. But neither of them realize they are mere cogs inside a deeper, more sinister conspiracy.

While searching for his girlfriend, Xiao Ang crosses paths with a Burmese youth named Wen Dan who also happens to be searching for his family. Together, they become involved in a fight against sinister forces as they struggle to find clues. Xiao Ang is a retired soldier who used to be a part of the special forces. He goes overseas to find his girlfriend who was abducted by a criminal organization. He encounters Wen Dan who is in a similar situation, and their search brings them to a region in Southeast Asia. In order to save their loved ones and uphold justice, they join hands in a deadly war against the local gangs and warlords. However, the truth that they seek eventually forces them into different paths.