Tourist Trap

S1 E6: When Ben can’t resist messing with the Worlds largest rubber band at a cheesy roadside tourist trap town, he accidentally releases Megawhatts, mischievous and destructive creatures made of electrical energy with the power to warp reality to their own sinister prankish delight, that were living inside. Ben must then use his alien hero personas and his own practical joke-loving ideas to recapture the Megawhatts before they can threaten a major population center.