Young scientist Bai Jingtian leads a group of people into the vast mountains in search of a murderous hydra. He thought it was just an ordinary scientific expedition. Unexpectedly, many dangers will follow one after another.
Ning Ning is a new student at her school, where her passion for singing helps her form a relationship with a boy in her class. Together with their friends, they fight the odds to participate in an inter-school singing competition.
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.