While heading for Eterna City, Ash and the others come across a trainer and his defeated Zigzagoon. He tells them that he was attacked by a wild Buziel that is incredibly strong. They decide to go after it so that one of them can capture them. At the river they encounter Zoey, who is looking for a Water-Type. They finally encounter the Buizel, but one by one, Piplup, Glameow, and Pikachu are all defeated. They then follow Buizel to its training ground and try the same training. At the same time they must also defeat Team Rocket, who want Buizel to themselves. (thetvdb.com)