Follows prodigy vulcanologist Antoinette Vitrini and her sister Emily as they attempt to blow the whistle on an illegal oil drilling scheme before it sets off the eruption of a super-volcano directly beneath Miami.

年轻有为的兽医埃里•鲁库斯（Vincent Ventresca 饰）继承了父亲的D.V.M兽医科研所，某天，他受邀前往密苏里州的霍斯特农场问诊。农场中的牛群近期感染奇怪的寄生虫接连死亡，埃里在观察期间偶然发现，这种前所未闻的寄生虫竟会在吸血后…