The test was a go: a revolutionary, pilot-less aircraft that can destroy unlimited targets and stay aloft for months at a time. Codenamed Guardian Angel, the aircraft displayed its deadly accuracy. Then disaster struck.

From deep within the Pacific shelf, the earth unleashes a giant tsunami, wiping out the test platform for Angel and causing catastrophic damage on America's Pacific Coast. In the midst of a mammoth rescue and recovery operation, the U.S. Navy has an even more horrifying problem. Its murderous Angel is still in the air, out of human control, and primed to keep killing anything it can see...

Major Tom Bryan and his Land Air Sea Emergency Rescue team train to do the impossible-anywhere on the planet. But nobody has trained for this. Bryan must fly a twin prototype through Angel's kill zone-and somehow get inside the rogue craft. But that's only the beginning. Because America's guardian has already started firing its high-tech weapons, and the world is on the verge of war...