Participating in a soapbox-car derby, Justin contends with a brutual pre-teen bully, named Warren, who's prepared to win at any cost. Meanwhile, with his detonator-making prowess unappreciated on Divatox's Subcraft, Porto, feeling dejected, strikes out on his own, giving the Rangers big trouble! The lack of the tech expert doesn't stop Elgar from completing a detonator and sticking it in Warren's racer. Also, the Bulk & Skull Chimps highjack the previous year's winning racer in an effort to become famous and get turned back into humans.