Fallen Wonderbolt Idol

Sky Stinger and Vapor Trail are now Wonderbolts, and Rainbow Dash congratulates them, only to discover in shock that the Wonderbolt who first rescued her and her biggest Wonderbolt idol, Nimbus Nimble, is wanted for murder, being like Rainbow Dash, only to a more negative manner, yet still had a good side to him, up until this point when he kills a pony accidentally when competing for his title as it goes to violence. Thus, hunted down by authorities, Nimbus goes into hiding. Rainbow Dash, upon being sent to the mission of turning him in upon learning of her connection, is hesitant as she feels awful for having to do this to such an inspiration, as Spitfire assures her that, though it may be hurtful, to just remember him for what he did right, and not by what he did wrong. However, learning from a 'cool' and 'aspiring' idol of Rainbow Dash named Shadey, who is a twice-removed cousin to Nimbus, as well as his two partners Speedy and Skyrocket and his commanding officer and surrogate father Poynting Prance, that he is not that malicious, and he wouldn't risk murder in such a fashion even with pettiness and pride, Rainbow discovers that there is another threat at play meant to incriminate not just Nimbus, but also the Wonderbolts, and that is an evil bicorn of unbelievable power named Galaxy Rush, who was a rogue and overachieving student of Celestia defeated by them once and swore revenge, all by tricking them into committing crimes and not just through Nimbus. Thus, Rainbow Dash must correct this and save the Wonderbolts, especially when Galaxy is now targeting Sky and Vapor.