Bomb disposal specialist

Zhang Zaishan (played by Andy Lau) is a senior inspector of the "Explosive Ordnance Disposal Bureau" of the Hong Kong Police Force. Seven years ago, he infiltrated the criminal gang of the most wanted criminal Huo Huo (played by Jiang Wu), in an operation to rob the vault, Zhang Zaishan revealed the identity of his undercover bomb disposal team, and cooperated with the police to successfully prevent the bomb from detonating, and wiped out the criminal organization of Huo Huo and his brother, but unfortunately in a few moments, Huo Huo escaped and threatened to take revenge. After his reinstatement, Zhang Zaishan was soon promoted to the position of bomb disposal specialist in the Force. Seven years later, Hong Kong has been hit by a series of bomb attacks, and the police have received reports that a large number of explosives have been smuggled into Hong Kong. Just when the people of Hong Kong were panicking, the city's busiest Hung Hom Harbour Tunnel was blocked and intercepted by bandits, hundreds of hostages were held hostage, and finally the police were threatened to blow up the tunnel. Zhang Zaishan can only dismantle the shocking conspiracy behind this anti-terrorist storm by bringing the fire to justice.