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 cool new fossil exhibit at the Dinosaur Museum, Ernie never lets the strict rule of his mum, Sue or his tag-along sister, Julia, keep him from stirring up some fun. While visiting his best friend Max’s house, daredevil Ernie stumbles upon Max’s dad’s latest invention: a sleek, egg-shaped time machine. When Julia bursts in on the boys’ discovery, the time machine whirs to life and closes its doors on the three arguing kids. It whisks them away to a lush jungle untouched by mankind, where a living, breathing T-Rex named Tyra mistakes them for her newly-hatched children, joining her family with hyperactive dinosaur son Dodger.