情事2：朋友的继母

　　British Army radiation drills at a remote Scottish base attract a subterranean, radioactive entity of unknown nature that vanishes, leaving two severely radiation-burned soldiers... and a "bottomless" crack in the earth. Others who meet the thing in the night suffer likewise, and with increasing severity; it seems to be able to "absorb" radiation from any source, growing bigger and bigger. What is it?? How do you destroy a thing that "feeds" on energy?

前特种部队队员丹尼被迫重返一座偏远孤岛。一个残暴又隐秘的组织为了报复，绑架了他的女儿亚历克斯，并布下天罗地网，对他展开一场步步紧逼、针对他所有行动都早有准备的残酷猎杀。

在墨西哥的丛林深处的神庙，考古学家们发现了一种古老的蛇崇拜文化，同时他们不小心释放了一条沉睡了几个世纪的巨大而可怕的蟒蛇。