In the Unova region, one trainer stood against the head of Team Plasma, N. They fought using the two legendary dragons, Reshiram and Zekrom. But during the battle, something terrible happened. Reshiram was defeated, along with its trainer, Sunny. Now, Team Plasma has taken control of the Unova Region, which is now in ruins from the battle. Only a small band of trainers live on, one of them being the one and only, Sunny.