When the gang discover a prehistoric fossil on the beach, dinosaur fever grips Rock Island. Taylor soon finds herself in deadly peril that leads to a shocking revelation about both Rock Island and Raquel.

On the anniversary of Uncle Charlie's disappearance, the gang are shocked to see the Bermuda Queen flying over the island. But when their investigations lead them to a hidden airstrip, Taylor and Lila accidentally get trapped on a perilous flight.

Taylor has a vision of Uncle Charlie in trouble at the Hidden Valley. She and the gang travel there, only to realise that the valley is trying to keep them out and that they are being relentlessly pursed by Raquel.