内容简介：
Mike Warner is back at it again. Only this time he has become aware that his time machine has been discovered by the secret government agency known as the N.S.A. (National Security Agency). Mike suddenly finds himself swept up in a storm of intrigue and turmoil of epic proportions. Knowing now that the only way to save the world is to once again take a trip through time to an adventure neither he nor his companions would ever have dreamed or imagined. A voyage into the unknown that would change him and his friends forever.