Amy Rose leaves the safety of the doors her father built to find the last piece to complete her sick as hell railgun, but she encounters a Murder Drone who goes by the name S, the Murder Drones manage to chase her into the safety of the doors and threaten the Worker Drones, but with the help of S, Amy is able to stop R and E, Amy killing R in the process, Amy banishes herself, but after having to rail gun returned to her and news about some Worker Drones going missing she and S go back to investigate, running into a huge threat, now Amy, S and E go to find out who is happening, running into threats and dangers on the way, will Amy, S and E find out what's going on? or will they die trying?