Black Mirror (2011-) Season 4 - 6 episodes (2017) Watch Black Mirror Season 4 on Netflix Each unconnected episode examines the pitfalls when technology and society intersect. What happens when technology goes off the rails, creating a horrifying situation? Does technology make us happier, is being connected at all times beneficial, and does it do more harm than good? The stories are known for their harrowing nature and depressing conclusions. The fifth episode of season four is Metalhead, where robots hunt and kill any remaining human survivors. Ward: Watch it