Bulk and Skull are blamed for the thefts of several mechanical parts from the "Super Duper Fast Delivery" service they've begun working for. TJ attempts to help prove their innocence, since the parts are actually being stole by Piranahtrons to aid in the repairing of the Evil Zords. Speaking of which, the third and final one, Rygog's Catzord, is unveiled, as all three of the Evil Zords are reunited on Earth to battle against the Rescue Megazord, Turbo Megazord, and Robo Racer, for one last big battle! (thetvdb.com)