Nancy Drew goes to Hawaii to serve as a research assistant to Dr. Quigley Kim, an entomologist. A devastating scourge is destroying the local pineapple crop. Residents are whispering that a secretive research compound has awoken the legendary Kāne 'Ōkala, a man who was killed in a volcano centuries ago and now prowls the Big Island wreaking havoc. Upon arriving, Nancy discovers Dr. Kim's camp has been ravaged, and Dr. Kim is missing. Coincidentally, the Hardy Boys are also on the island to complete a top-secret mission, so the three amateur detectives must team up to solve the mystery.​