Source plot synopsis — includes the ending
Goofy, after school principal Mazur exaggeratingly warns him about Max's potential "juvenile delinquency", immediately plans a fishing trip to Lake Destiny, Idaho, to curb his son's behavior. Max attempts to cancel his date with Roxanne, but then panics and tells her that not only are he and Goofy traveling to Los Angeles to attend the concert, but that Powerline has invited them onstage.
The Goofs hit the road, visiting a run-down opossum-themed amusement park where Goofy inadvertently embarrasses Max. The next day, they run into P.J. and his father, Pete, while camping. Goofy takes his son fishing and shows him a special fishing technique, accidentally luring Bigfoot to their camp and forcing the Goofs to spend the night in the car with Bigfoot outside. While Goofy sleeps, Max alters the map's route to Los Angeles.
The next morning, Goofy makes Max the navigator of the trip and the duo enjoy several stops together. That night, while staying at the same motel, Pete overhears a conversation between Max and P.J. and informs Goofy about his son's deception. Goofy still believes Max will do the right thing, but when Max chooses the route to California the next morning, a furious Goofy stops the car at the Grand Canyon. With the brake loose, the car rolls away on its own; the Goofs chase after it and end up riding the car down the Colorado River. After a brief but heated argument, Goofy acknowledges that Max will always be his son in spite of his maturation and they finally reconcile. After Goofy learns about his son's promise to Roxanne and they evade a waterfall, Goofy decides to take him to the concert.
In Los Angeles, the Goofs arrive at the concert, sneak onstage and became part of the performance, delighting many friends watching from home, including Roxanne. Max and Goofy return home in their barely functioning car and Max tells Roxanne the truth; she admits she always liked him and they make plans to go out. The car explodes, ejecting Goofy into the porch roof of Roxanne's house, and Max proudly introduces his father to his new girlfriend.
Sources and content license
Source and revision history ↗ · Adapted from Wikipedia contributors, A Goofy Movie. Section headings and formatting adjusted. · Content license