Wong Yu is an upstart young fighter who gets a job to deliver a box which he is not allowed to know the contents of, but will be paid a fortune once its delivered.Wong Yu is an upstart young fighter who gets a job to deliver a box which he is not allowed to know the contents of, but will be paid a fortune once its delivered.Wong Yu is an upstart young fighter who gets a job to deliver a box which he is not allowed to know the contents of, but will be paid a fortune once its delivered.