Metal Saga

The Metal Saga consists of the anime, Beyblade: Metal Fusion, Beyblade: Metal Masters and, Metal Fight Beyblade 4D. They serve as a spin-off of the original Beyblade series with all new characters and Beyblades. It started in 2010 (2009 in Japan) and currently is running. It airs on TV Tokyo in Japan and is licensed for distribution internationally and co-produced by Nelvana, who also distributed the original Beyblade series internationally. Each season currently contains 51 episodes with the exception of Metal Fight Beyblade 4D which, has not aired yet.

Beyblade: Metal Fusion
Main Article: Beyblade: Metal Fusion 

Gingka Hagane, a Beyblader from the Beyblading residence, Koma Village, travels the country in search of strong Bladers. Along the way he meets Kenta Yumiya a strong but timid Beyblader and Madoka Amano, a bey repairer. They are joined by Benkei Hanawa and Kyoya Tategami who start out as enemies but put aside their differences and develop friendly rivalries. Eventually it is revealed that he is searching for the forbidden Bey, Lightning L Drago after it was stolen by Ryuga and Doji of Dark Nebula, a secret organization with dark plans. They plan to use L-Drago to assume control of the world.

Beyblade: Metal Masters
Main Article: Beyblade: Metal Masters 

Gingka and his friends meet a new Beyblader named Masamune Kadoya. Masamune is a new Blader who joins Gingka's group and will stop at nothing to defeat him. Gingka and Masamune in a new Beyblade Tag Tournament called, Big Bang Bladers. A World Tournament where representatives from a country around the world compete to become the best Bladers. With Gingka and Masamune picked as the representatives of Japan they won't hold anything back to win.

Metal Fight Beyblade 4D
Main Article: Metal Fight Beyblade 4D 

Official Synopsis