In Country A, Zhao Jian leads his Black Wolf Squad to escort cargo for General Cha Cai. They are ambushed by guerrillas. Zhao Jian captures the guerrilla leader Zhang Ling and learns that the Black Wolf Squad isn't transporting humanitarian supplies but materials for human experimentation conducted by Cha Cai for personal gain. Zhang Ling pleads for help from the Black Wolf Squad but is refused. On their way back,... see more