Bakugan: Gundalian Invaders is the third TV anime series produced by TMS Entertainment, based on a Sega Toys concept. It follows the 2007 anime Bakugan Battle Brawlers and its 2009 sequel Bakugan: New Vestroia. The first two anime seasons recount the adventures of Daniel and his friends as they help free Vestroia - the alternate world of the Bakugan warrior Dragonoid. (based on ANN synopsis)