Power Rangers Operation Overdrive follows the journey of five brave individuals recruited by billionaire explorer Andrew Hartford to recover the Corona Aurora, a powerful ancient crown. When the crown is stolen by the villainous brothers Flurious and Moltor, the team must use advanced technology and specialized gear to track down the crown's scattered jewels across the globe before their enemies can use them to unleash ultimate destruction upon the world. As the team navigates the challenges of their mission, they face constant threats from multiple factions, including the Fearcats and the master villain Thrax. The series emphasizes themes of teamwork, global exploration, and the burden of responsibility as the Rangers balance their personal lives with their duty to protect the artifacts from falling into the wrong hands.