内容简介：
A mysterious package leads 10-year-old Justin Hart to the amazing laboratory of world-famous astrophysicist Dr. Frederick Von Fritz, who has just completed a fantastic invention - the Black Hole Traveler - Revision 5 (BHT5). The BHT5 has the power to create a black hole that can transport people to any point in the past. When Dr. Von Fritz is trapped in time, Justin must embark upon an incredible rescue adventure through the centuries. In his quest to rescue his friend, the young adventurer faces Nazi storm troopers, sword-wielding sultans, ferocious lions and Biblical giants. Through these incredible time adventures, Justin finds the courage to face his own past and the bullies of his present.