In 1994, a missile mysteriously disappears off the coast of Florida during military testing. While investigating the link between the disappearance and some unusual whale sightings, journalist Carol Dawson finds much more-an enigmatic artifact that may not be of earthly origin.

The artifact may be worth millions-and Dawson and her colleagues must outwit thieves and criminals to keep it safe. But the artifact leads to another, bigger discovery deep beneath the ocean's surface-a discovery that could change the face of humanity forever.