It has been four weeks since the day of the disappearance. The day twenty-five seniors emerge from their math class at Madison High to discover that everyone else had vanished and they became the Last On Earth They have already divided into rival groups. One is led by Travis, who quickly established himself as the domineeing, militant leader of his community. The so-called rebels, led by Jake, are committed to finding an explanation for the mysterious event that has left them alone on the planet. What they find is powerful evidence that they are not alone in the universe...or on Earth. Messages that look like gibberish appear on a computer. A stranger, with no knowledge of their world, appears in their midst. And the personalities of the group are changing radically. They have entered into a new reality...more mysterious, more advanced, and far more terrifying than anything they might have imagined.