Five years ago, the mysterious and inscrutable head of Effective Engineering Solutions, Eli Glinn, led a mission to recover a gigantic meteorite - the largest ever discovered - from a remote island off the coast of South America. The mission ended in disaster when their ship, the Rolvaag, foundered in a vicious storm in the Antarctic waters and broke apart, sinking - along with its unique cargo - to the ocean floor. One hundred and eight crew members perished, and Eli Glinn was left paralyzed. But this was not all. The tragedy revealed something truly terrifying: the meteorite they tried to retrieve was not, in fact, simply a rock. Instead, it was a complex organism from the deep reaches of space. Now, that lifeform has implanted itself in the sea bed two miles below the surface - and its growing. If it is not destroyed, the planet will be doomed. There is only on hope: for Glinn and his team to annihilate it, a task which requires Gideon's expertise with nuclear weapons. But as Gideon and his colleagues soon discover, the "meteorite" has a mind of its own - and it has no intention of going quietly.