"Power Rangers Dino Thunder" is a television series that is part of the long-running Power Rangers franchise. It premiered in 2004 and features a group of teenagers who gain special powers to transform into Power Rangers. They are tasked with protecting the world from evil forces, particularly the villain Mesogog, who seeks to unleash prehistoric creatures. The series is set in the fictional town of Angel Grove and incorporates themes of teamwork, friendship, and responsibility. The Rangers use advanced technology and dinosaur-themed abilities to battle their enemies, while also dealing with the challenges of high school life.