On the way to the Battle Dome, Ash and the others decide to stop at a famous fishing spot for the day. However, the lake is deserted. They find out from the owner of a fishing house, Tiffany, that a company wants to buy the lake and turn the land into a resort. In order to scare people away from the land, so Tiffany and her grandma get no business, the leader of the company uses his Crawdaunt to terrorize the lake. When Tiffany finds out, she challenges him to a battle. The next day, Ash prepares to fight him for the future of the lake.