Agent Sunset Shimmer is part of an organization known as The Agency that protects its borders from potential foreign and domestic threats. After discovering a list of possible sleeper cells, Sunset is tasked with finding the source of these cells, which ultimately leads her to Germaney.
But as she soon finds out, her target is as cunning and dangerous as she is, leading to a cat and mouse game that could potentially put the world on the verge of chaos.