As an epidemic of a lethal airborne virus - that kills within days - rapidly grows, the worldwide medical community races to find a cure and control the panic that spreads faster than the virus itself.
After losing an election to become chairman of the Wo Lin Shing triad, a gang leader lashes out and tries to seize the dragon-head baton, the official symbol of a chairman's authority.
As election time nears, current Triad chairman Lok faces competition from his godsons. At the same time, Jimmy looks to increase his business relations with mainland China.
