Later the real Mel (Gasteyer) and Mo (Cavanagh) arrive at the ranger station after being waylaid by various mishaps, and they expose the Deedles as imposters. This upsets Jesse and Captain Pine, leading to the brother's expulsion from the park. Despite this, they still set out to stop Slater from going through with his plan and attempt to infiltrate his base. When they parachute onto his land, they are immediately taken underground to Slater. There, with the help of a prairie dog they befriended earlier, they don protective heat suits and halt the diversion of superheated water to Slater’s geyser “New Faithful” and restore Old Faithful. This incidentally causes a reaction that creates an explosion on Slater’s land, creating a natural wave pool where visitors can surf.