Bakugan Battle Brawlers is a popular cartoon network series. The main character Dan, along with his friends Shun, Runo, Alice, Julie, Marucho and later Joe.
A Bakugan is a small magnetic sphere which when thrown on a gate card turns into a highly strong and powerful warrior. This whole world of Bakugan in known as the parallel world Vestroia. The story starts when seven children see matallic cards falling from the sky and they name themselves Bakugan Battle Brawlers. They also have enemies Hal G Masquerade and Naga. The children also learn about the origin of Bakugan. In New Vestroia the Children are called to the newly restored Vestroia to stop the evil group known as Vexos. The children are allied with three new brawlers Mira, Ace and Baron; together they plan to take on the Vexos from controlling the new Vestroia.