While preparing a to eat one of Brock's meals, Aipom and Piplup get into a fight which Turtwig tries to break up. Paul shows up and seeing Ash's new Turtwig, he wants to battle it. During the battle Turtwig will not dodge attacks which worries Ash. Team Rocket then interrupts and Ash and Paul wind up going over the cliff side. At the bottom of the cliff is a forest where wild Stantler live and create illusions so that they will not be disturbed. Now Ash has to make it out of the forest without the interruptions of the Stantler, as well as some Beedrill and Ursaring. (thetvdb.com)