The fourth series of the Pokémon anime, based on the events of the Generation V core series Pokémon games. It follows Pokémon the Series: Diamond and Pearl and was succeeded by Pokémon the Series: XY. It ran from September 23, 2010 to October 3, 2013 in Japan and from February 12, 2011 to December 7, 2013 in the United States. Known as Pocket Monsters Best Wishes! in Japan.
As with both Pokémon the Series: Ruby and Sapphire and Pokémon the Series: Diamond and Pearl before it, Pokémon the Series: Black & White begins with only Ash Ketchum, who sets out to travel through the Unova region and challenge the Unova League with his Pikachu, accompanied by a girl by the name of Iris and with one of the first Unova Gym Leaders, Cilan, who is also a Pokémon Connoisseur.
