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Sebastian Mok is a British, Austrian and Chinese mixed actor born in Reading, England.
He was raised in both Scotland and Hong Kong.
He speaks English, German and Cantonese.
Hong Kong Customs and Excise Department officers Chow Ching-lai and Cheung Wan-nam share a close mentor-student relationship. On a case involving seized smuggled arms, Ching-lai is sent to take part in a joint operation with Interpol to capture a reclusive arms dealer. However, Wan-nam makes a drastic decision that further complicates the case.