Andrew, Judy, and Thudd have escaped primordial Earth only to find themselves surrounded by huge - and hungry! - dinosaurs. Meanwhile Uncle Al is still stranded in the Ice Age. Somehow Andrew, Judy, and Thudd must fix their time machine and rescue Uncle Al - before he becomes a human ice cube! Kids, parents, and teachers love this series - kids for all its gooey grossness, and teachers and parents for all the fun science and great discussion points!