In 1905, revolutionist Sun Yat-Sen visits Hong Kong to discuss plans with Tongmenghui members to overthrow the Qing dynasty. But when they find out that assassins have been sent to kill him, they assemble a group of protectors to prevent any attacks.

During World War II, a secret agent must seduce then assassinate an official who works for the Japanese puppet government in Shanghai. Her mission becomes clouded when she finds herself falling in love with the man she is assigned to kill.