Ash realizes that he must battle and collect a ghost Pokemon in order to defeat the young girl’s psychic Pokemon. In search of a ghost Pokemon, he heads immediately for a tower in Lavender Town where they are said to live. Jessie, James and Meowth from Team Rocket are already at the tower, but as they lay in wait for our heroes, they are attacked by Gastly, Haunter and Gangar. In the process of trying to defeat the ghost Pokemon, Ash learns a lesson or two about the mystical spirit world. Can Ash capture a ghost Pokemon and if so, will it be enough to defeat the psychic Gym Leader of Saffron City? (thetvdb.com)