Shun grew up in a lab, but he escapes, then he gets put back there but not only that the Vexos and resistance are took there too. Now they are counting on Shun to survive. then they meet max and the two flocks team up, this is there story
The bakugan battle brawlers have officially become flock members with the Vexos even though they do not have wings and everything goes back to normal, well as normal as it gets with Shun and Ace around and people keep getting sick including Fang and Shun and those two never get sick. and what of Shun's crush and a twitter war #AceXShun