Even if he has not seen his brother alienated for some time, Luke, Jia is alarmed when he finds out that he does not know anything about him after he went on a research mission to Western China with Mason , his superior. Mason gathers a team of scientists, including Jack, to go to the place where Luke disappeared hoping they will locate him. She succeeds in persuading her and Jia to join them. But shortly the team is at the mercy of an extremely dangerous electrical storm and discovers a life-threatening spider kingdom.