Episode Description: Beware, spoilers! To read - hover over the text.
By accident, Bart gets a cell phone. He is the phone of Denis Leary after learning that Bart uses the phone for a joke, takes Denis ' offer to star in the film "everybody poops". Marge finds the phone and reports to Denis about it. Denis Leary suggests Marge connect the GPS receiver in the phone, but Bart finds it and binds to the bird, and then the whole family has the "Bart" up to Machu Picchu.