城南古墓现李长风、秦若诗头颅。李长风曾害徐有功、吴红袖二人含冤入狱，吴红袖担罪让徐有功出狱追查。徐有功从线索锁定李忠，又在墓道密室发现谋逆书信。关键时刻蒙面人试图灭口，好在吴红袖带人擒住蒙面人，真相终大白。 ...

When a terrorist who specializes in explosives takes hold of an underground tunnel, he threatens to kill hostages if his demands are not met. ...