Yellow, a Pokemon trainer new to Pallet Town, befriends the injured Pikachu and sets off with him and several Poke friends to find the missing trainer Red, facing off against the most feared trainers in the world, the Elite Four, along the way.
Ash, Pikachu, Iris, and Cilan journey through Unova, a land with big cities, beautiful landscapes, and new Pok?mon, and Ash and his Pok?mon battle for badges.
Pok?mon trainer White's beloved Pok?mon and star performer, Gigi, leaves her for another trainer because White is afraid to battle her Pok?mon. Then, Black heads to Nimbasa City's Battle Subway.
At long last, Black, who is obsessed with winning the Pok?mon League, receives his Pok?mon, Tepig, and begins to explore the Unova Region and fill one of Professor Juniper's Pok?dex.