影片主要讲述了一队伪装成商队的革命党人被杀害。任维明接到任务：配合同盟会护送一批军火到南方准备武装起义反对袁世凯，中途与小军阀、土匪、黑市商人，拉开了明争暗斗的征途的故事。

The film mainly tells the murder of a group of revolutionaries disguised as a caravan. Ren Weiming received the task: cooperate with the Tongmenghui to escort a batch of arms to the south to prepare for an armed uprising against Yuan Shikai, and in the middle of the journey, he started a journey of open and secret battles with small warlords, bandits, and black market merchants.