Following up the surprise hit Young and Dangerous only a couple months after the original's release, this sequel -- again directed by Andrew Lau Wai-keung -- centers around Jordan Chan Siu-chan's Chicken Chiu. At the end of the last film, Chicken left for Taiwan after he was lead to believe that his buddy, Chan Ho-nam (Dior Cheng Yee-kin), betrayed him. While Ho-nam and the Hung Hing gang open a bar on Causeway Bay in Hong Kong, Chicken joins the San Luen gang while trying to seduce his boss' girlfriend, Ting Siu-yiu (Chingmy Yau Suk-ching). In gratitude for killing a rival crime boss, Chicken is made boss of the Poisonous Snake Hall. Meanwhile in Hong Kong, Ho-nam is vying for leadership of Hung Hing with a bumptious oaf named Tai Fai (Anthony Wong Chau-sang). Later, the San Luen gang tries to enlist Hung Hing's support in a Macau casino. When the latter declines, violence ensues. Soon Chicken must decide which side he's on.
by Jonathan Crow synopsis