While trying to earn money at the country club, Bart acquires Denis Leary's cell phone after Leary angrily chucks it away. Bart keeps the phone and makes prank calls pretending to be Leary and when Marge finds out what Bart is doing she contacts Leary. Denis says Bart might as well keep the phone, but he advises her to activate the GPS system in the phone so she can track Bart's every move.