After the attack on Canterlot Castle, a changeling named Kraz is ordered to retrieve a friend from Ponyville. The punishment for leaving the hive was imprisonment for life, or even worse, being executed by Queen Chrysalis herself. Kraz has two options: disobey Queen Chrysalis and be executed; or bring his friend back to the hive and watch him suffer for his actions. As if that weren't bad enough, how is Kraz supposed to find a changeling amidst so many ponies?