On July 2nd, communications systems worldwide are sent into chaos by a strange atmospheric interference. At first thought to be meteors, the United States military suspect that a number of enormous alien spacecraft are on a collision course with Earth. After attempts to communicate with the aliens go nowhere, David Levinson, an ex-scientist turned cable technician, discovers that the aliens are going to attack major points around the globe in less...

Using recovered alien technology, the nations of Earth have collaborated on an immense defense program to protect the planet. But nothing can prepare people for the aliens' advanced and unprecedented force. Only the ingenuity of a few brave men and women can bring the world back from the brink of extinction.