Ok, so the agents (yes, the ones from switch wars) had invaded Summer’s realm. Summer had tried to escape and she fought bravely against them. When most of her species was rounded up and sent to one of the agent facilities she attempted to save every, she got caught in the process. The agents then asked for someone from her species to sacrifice themself or else they would eliminate everyone. Summer proceeded to sacrifice herself to them. She was knocked out and woke up to find everyone else either vanished or was eliminated. Summer then managed to find a way out of her ruined realm to which she traveled to earth by which was when the mind control device implanted near her brain activated. She knew something was different about herself when she started killing things for no reason other than for sport.
This is why summer hates the agents in switch wars.
