A computer hacker's goal to discover the reason for human existence continually finds his work interrupted thanks to the Management; this time, they send a teenager and lusty love interest to distract him.
After a group of biologists discovers a huge network of unexplored caves in Romania and, believing it to be an undisturbed eco-system that has produced a new species, they hire the best American team of underwater cave explorers in the world. While exploring deeper into the underwater caves, a rockslide blocks their exit, and they soon discover a larger carnivorous creature has added them to its food chain.
In 18th-century Romania, after spending much of her life in a traveling circus, human-vampire hybrid Rayne escapes and plots to take down her father, Kagan, the evil vampire king. When she's discovered by three vampire hunters, she manages to convince them to spare her life and join her cause. But slaying a vampire as powerful as Kagan will be no easy task.
