With the brake loose, the car drives off on its own Goofy and Max chase after it and end up in a river. Max chooses the route to California, making Goofy stop the car at the Grand Canyon and storm off in anger. The next day, Goofy and Max come to a junction, one road leading to Idaho, the other to California. When Pete overhears a conversation between the boys, he tells Goofy that Max has tricked him into traveling to Los Angeles. Eventually, they stop at a motel where they meet Pete and P.J. The two go to several locations that satisfy both of them. The next morning, Goofy makes Max the navigator of the trip. While Goofy sleeps, Max alters the map's route to Los Angeles, where the concert is taking place. Pete and PJ flee, leaving Goofy and Max to spend the night with Bigfoot. Goofy takes his son fishing and shows him the Perfect Cast fishing technique, accidentally luring Bigfoot to their camp. While PJ informs Max of how all their peers back home anticipate seeing him onstage at the Powerline concert, Pete advises Goofy to keep Max under control. Later, Pete and PJ happen to meet up with them while camping by a lake. Max hurts his father's feelings after Goofy inadvertently humiliates Max at an opossum-based theme park. Before they leave town, Max stops by Roxanne's house to call off their date, but when the heartbroken Roxanne mentions going with someone else, Max panics and instead fabricates a story about his father knowing Powerline, telling her he will be on stage at the concert.ĭespite his son's objections, Goofy plans his own trip. Oblivious to Max's plans with Roxanne, Goofy decides to take Max on a fishing trip to Lake Destiny, Idaho, following a cross-country map route he and his own father took years ago. However, Mazur telephones Goofy and exaggerates Max's actions, forewarning him that Max may face punishment.
While waiting, Roxanne agrees to go with Max to a party where Powerline's concert will be viewed live on television. The performance makes Max a school celebrity and impresses his love interest, Roxanne, but he, PJ, and Bobby are sent to Mazur's office. On the last day of school before summer vacation, Max and his best friends PJ and Bobby hijack the auditorium stage in the middle of Principal Mazur's speech, creating a small concert where Max performs, costumed as the pop singer Powerline.