1x15 - Power Rangers Beast Morphers

Devon becomes hooked on his new Red Fury Mode powers, even using them to stop a bank robber, but the drain on the Fury Cells means he must steal them from Blaze and Roxy. Unbeknownst to him, the Cells have unexpected side effects as the technology slowly turns him evil. Evox schemes to turn the Red Ranger evil forever, while Roxy obtains the final beast power.