Pokemon Season 1 Episode 46 Episode Title:Attack of the Prehistoric Pokémon.Episode Description:Arriving at a canyon to find an old fashioned fossil hunt, Ash, Gary and the gang decided to join in. But Team Rocket arrives and intends to blow the canyon up. In doing so, Ash, Pikachu and Team Rocket fall into a pit which is full of awakened ancient Pokémon. Their only hope may last in Ash's disobedient Charmeleon, which evolves into a powerful, yet still disobedient Charizard to defeat a raging Aerodactyl.