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.预告中，啤酒上头的包贝尔认魏翔当亲哥，酒桌上，包贝尔整活旋整瓶顶级白兰地的洋酒。