The RPM Rangers must use their Zord Attack Vehicles, and the High Octane Megazord, to deal with the double threat of the Venjix's giant Generation 5 Attack Bot and Drone-piloting Grinders. During the battle, Dillon and Ziggy pitch in when they notice Grinders targeting Summer. But the pair are repaid unkindly, as thanks to Dillon's Venjix-based bionic implants and Ziggy's criminal past, both are soon tossed into jail! Doctor K warns the Rangers of the evolving threat of Venjix's army, meaning they will need to activate the Series Black armor as soon as possible. But since no ordinary human can operate it, they soon realize they'll need Dillon, whether they like him or not. Will he agree to join them? That all depends on how long he can survive in a prison full of criminals angry at his new partner, Ziggy!