Goofy is the single father of a teenage boy named Max Goof in the town of Spoonerville, Ohio, though the two have a tense relationship. On the last day of school before summer vacation, Max and his best friends P.J. and Robert "Bobby" Zimmeruski hijack the auditorium stage in the middle of Principal Mazur's speech, creating a small concert where Max performs, while costumed as the pop singer Powerline. The performance succeeds in making Max a school celebrity and impressing his love interest, Roxanne; but he, P.J. and Bobby are sent to Mazur's office. Roxanne speaks with Max and agrees to go with him to a party where Powerline's concert will be aired live. However, Mazur exaggerates these events to Goofy and forewarns him that Max's actions may result in him facing capital punishment. Goofy decides to take Max on a fishing trip to Lake Destiny, Idaho, following a map route he and his father took years ago, and the two go into his station wagon. However, he is oblivious to what Max is planning to do with Roxanne. Max stops by Roxanne's house to call off their date, but when Roxanne says she will just have to go with someone else, Max instead fabricates a story about his father knowing Powerline; he tells her he will be on stage at the concert...