Millions of years ago, an intergalactic bounty hunter named Sledge tried desperately to capture the 10 mysterious colored gems known as the Energems. Legend had it that each of these Energems could imbue whoever possessed them with incredible powers. Keeper, the wise and ancient guardian of the Energems, narrowly escaped Sledge's grasp and in doing so crashed onto pre-historic Earth. Keeper entrusted each Energem to the Earth's mightiest beasts, the dinosaurs, for protection. But when a devastating meteor shower rained down on Earth, the dinosaurs went extinct and the Energems were lost. As the centuries passed, some of the Energems were discovered by humans. Those who proved to be worthy gained the ability to morph into Power Rangers. But now, Sledge has returned and has vowed to capture the Energems at all costs. It is up to the team of teen heroes known as the Power Rangers Dino Charge to hunt down the rest of the Energems and defeat this vicious bounty hunter once and for all!