Watch Free Online HD Moviesjoy. What if the Doomsday Preppers were right all along? Hacking into urban infrastructures isn't science fiction anymore - it's in the news every day. A 90-minute docu-drama, "American Blackout" reveals in gritty detail the impact of what happens when a cyber attack on the United States takes down the power grid. The question is: when the lights go out, what do we do next.