There’s nothing Ernie loves more than an excellent adventure, whether he’s zooming around town on his rocket-powered skateboard or stealing an early peek at the coolest new fossil exhibit at the Dinosaur Museum. It’s not always easy under the strict rule of his mom Sue (Jane Lynch) - especially with his sister Julia following him around and trying to get him into trouble every chance she gets - but he still manages to stir up some fun. One day, however, Ernie’s daredevil nature takes him on a journey with potentially irreversible consequences. After sneaking over to his best friend Max’s house, Ernie discovers Max’s dad’s latest invention: a sleek, egg-shaped time machine. Suddenly, Julia bursts in to bust the two boys, and in the ensuing chaos, the time machine whirs to life and closes its doors on the three arguing kids.