Sergeant Voight tries to find out who is behind the murder of Jin, and come up with the unbelievable discovery and learned that Sergeant Edwin Stillwell playing a double game with the intention of getting out on the surface of the big fish along with Voight. In the meantime, all members of the intelligence departments receive death threats from an unknown group called "Shadow"....,楚翔与李牛先对了对表，二人必须确定在同一时刻动手，楚翔要到洞里面去，李牛则留在洞外，所以时间上要拿捏准，就算差也不能差的太大。……