Tell me the contents of the first Pokémon and the introduction of each episode.
The contents of Pokémon 1 were as follows: Season 1: 1 Elf Forest Superdream's Counterattack Dreams and Bubbles The Treasure of the Elves The Road to the Championship Dream and the Sorcerer's Stone Pikachu and Electric Dragon Mysterious Planet The Fate of Battle Billy and Yao The introduction of each episode is as follows: Season 1, episode 1: The story was about Billy and his friends meeting an elf in the forest. The elf told them that there was a magical sorcerer's stone in the world that could help them become powerful elven warriors. Billy and his friends began their adventure through forests, rivers, and grasslands, encountering new elves and challenges until they finally found the Sorcerer's Stone and defeated the evil sorcerer to become the champion. Season 1, episode 2: Billy and his friends came to a place called Super Dream. The elves here were very powerful, but they were all very lonely. Billy and his friends decided to help the guardians of Super Dream solve some problems, and they eventually became good friends. Season 1, episode 3: It was about Billy and his friends who met a dream in the dream kingdom. The dream told them that their father was a powerful elven warrior but was defeated by evil forces. Billy and his friends decided to help Dream find his father. In the end, they defeated the evil forces and Dream finally recovered his father's memory and became a good friend of Billy and his friends. Season 1, episode 4: Billy and his friends met a Pikachu and Pikachu told them that their father had been taken away by an electric dragon. Billy and his friends decided to help Pikachu's father find him. In the end, they defeated the electric dragon and rescued Pikachu's father, becoming good friends.