Chapter 1: A mistake

The Murder Drones or Dissimbly Drones currently reside on Copper 9, a snowy waste land that was left lifeless after the humans killed themselves there somehow, leaving only the Worker Drones who survived, the Murder Drones were built to kill all the worker drones, and despite being only three, they due quite the good job, due to them having a wide arsenal that makes them the equivalent to a army, with that in mind, what would happen if it wasn't just the worker drones they were going after, but rather all robots and AI in the entire Multiverse, what might happen?