The terrorist organization "Waganbu" infiltrated Hong Kong and set off a battle for chemical weapons in Hong Kong. Fan Shaofeng, the commander of the Flying Tigers, was ordered to fight against the terrorists. The Flying Tigers are trapped in the ruthless killing of Wagambu, the Special Service Superintendent Zhan Bowen convenes the police elites Zhang Weihua, Zhang Jiaxuan and Gao Zile to form a secret counter-terrorism team S Team . Faced with many crises, with the assistance of Interpol Xu Junfei, the two generations of China and Youth finally put aside their grievances and feuds and joined forces to prevent the spread of the chemical weapons virus in Hong Kong.