Meet Matt, Jia, Emma and Tim. These four students at Edwin Doolittle Elementary School may look like ordinary kids, but these friends are anything but. That's because when animals around the world get into trouble, something incredible happens! Matt, Jia, Emma and Tim receive a special signal on their high-tech backpacks, alerting them to the trouble. Now the friends put their ordinary school life on hold and leap into action, transforming into an extraordinary rescue team known as the Petronix Defenders!