As our heroes watch in amazement, Korrina’s Lucario finally Mega Evolves! Ash challenges Mega Lucario to a battle on the spot, and Korrina excitedly agrees. But something seems to be wrong with Lucario—it completely loses control of itself, ignoring its Trainer’s commands and flying into a rage! It’s about to unleash a savage attack on an exhausted Pikachu when Gurkinn sends out his own Lucario to stand in the way.
At the Pokémon Center, Gurkinn expresses concern about Lucario’s violent reaction to Mega Evolution, and challenges Korrina to a battle against his own Mega Lucario. Korrina is confident, but shortly into the challenge, her Lucario starts to enter its battle rage again. Gurkinn quickly calls the battle to a halt and orders Korrina and Lucario to seek out one of his former teachers on Pomace Mountain for special training. Our heroes decide to join her on this new journey!