Dr. Shasta Copper worked hard to put her past behind her and has recently become engaged. Her life is turned upside down by a frantic phone call from Dr. Avery Buchannan. A global warming phenomenon causing the loss of ozone at the earth's poles is discovered, along with a government cover up. With assistance from other experts in their field, the band of scientists risk their lives as the fate of the earth becomes clearer. Shasta soon finds herself torn between the man she planned to marry and the man she had loved and thought she had lost forever.