这是星主殿近年来的绝对机密，边昌自觉边冲在这里修炼应该不会有危险，但为了保险起见，他带着边萦等人逃得这里来的时候，还是决定把边冲带走，以防万一这个绝密泄露了出去。害了他孙儿的姓命。A young newlywed couple find themselves trapped in a network of underground caves. With her husband injured, the new bride is forced to find her way back to the surface in order to save his life. In the process, they discover a terrifying truth about the "underneath", they are not alone. Something evil is hunting them.
