Rainbow is finally part of the WonderBolts. But, nothing can last forever. It isn't long before dark emotions are stirred. Jealousy and ire can corrupt with ease.
In Twilight's time of need, only Rainbow Dash is there for the young Princess. The others seem to be mad at her for things she didn't do. An old enemy approaches, and without the Elements, it can not be stopped... can it?
After Tirek's defeat, Twilight uses a newfound power to take justice into her own hooves, as she notices the lack of proper punishment to Equestria's enemies. But, is it really justice? Will her enemies be the only ones harmed?