This week on Castle, things get very "rise of the machines" as Castle and Beckett investigate a drone strike in the middle of Manhattan. The case certainly brings out the inner conspiracy theorist in Castle (always just a scratch below the surface) as he develops an elaborate Skynet-esque theory. It's the singularity! The machines are sentient... and they have a plan! (Wait, wrong show.) Unfortunately for Castle there are no Cylons or Terminators in sight, only a complicated family dynamic turned deadly.