Clash of beasts

"Charlie, Mac, and Maria managed to rescue the Project Chimera scientists from the devious Dr. Gray, but they couldn't stop him. Now he's closer than ever to enacting his dreadful master plan to transform all of humanity into a monstrous new species. And even worse, Kelly has betrayed her friends and joined forces with him. To defeat their beastly foes, Charlie and the others are going to need help. Luckily, they just saved the creators of the bracelets that give them their unbelievable powers, and they're about to get an upgrade. With even fiercer abilities, it's finally time for these kids to unleash their wild sides and save the world"--Amazon.com.