On the remote planet of Mars, the sleepy town of Bottleneck suddenly becomes the unlikely testing ground for a new, state-of-the-art hardware in police enforcement: a robotic police officer named Armiger, or Arm for short. Its arrival is a welcome surprise to the small police force, which has been struggling under the weight of constant budget cuts and a never-ending string of bizarre cases. This changes quickly when the robot's advanced AI and unwavering dedication to the law begin to cause more problems than it solves. Arm's rigid adherence to the letter of the law leads to a series of misadventures and mishaps, throwing Bottleneck into chaos. Determined to keep the peace, both on and off the books, the human police officers must now find a way to balance their own duties with the unintended consequences of their new robotic colleague.