In the Atlantic Ocean, hurricane Helena is gathering strength, becoming the most powerful storm in recorded history. As Helena bears down on Bermuda, Donovan Nash and other members of the scientific research organization Eco-Watch are called to fly in and extract key government people who have been studying Helena. For Nash, the routine mission turns deadly when an attempt is made on the life of the lead scientist—and a woman from his past—Dr. Lauren McKenna. In a bold attempt to diffuse the power of the hurricane, Eco-Watch is called upon to conduct a final flight above the massive fury of Helena.