Space Junk: Return to Sender

I was outside and it was a bright day despite all of the cloud cover that was around.  I was in a big suburban area of a big city, which I could see in the near distance in front of me.

Radios and TVs were carrying news about an alien invasion, and everyone was freaking out.  I had the feeling that the aliens were not there to harm anyone, but like many movies, "we" decided to attack before understanding what was really going on.

The military started hurling huge pieces of what can only be described as "junk" into the sky.  Chunks of old abandoned buildings (entire floors, or corner sections that were around 20 feet wide), rusted and crashed cars, and all sorts of other trash that they could find.  I'm not sure exactly what they were using to fire the stuff up into the sky even though they were doing it out in plain sight a couple of hundred feet off to my left.  Sometimes it felt like they were using huge cannons, and other times it felt like huge catapults or trebuchets.

The thing that was really odd about the whole thing was that even though they were firing all this junk up into the sky, they couldn't see what they were firing out.  The aliens were on the other side of the clouds.  It was like the clouds were perfectly opaque, despite the fact that everything was so bright, almost as if it were sunny out.  There were no dark shapes on the other side of the clouds.  There wasn't anything even indicating that they were there.  We just knew they were.

As the military fired things, they would disappear through the clouds like pebbles through the surface of a calm lake.  Nothing was falling back through, yet there seemed to be sounds of the items making contact.  This didn't seem to bother anyone for a while as they kept firing crap through the clouds.

Then, without warning, things turned horrible.  The aliens had been gathering our junk we were hurling at them and, they finally started firing it back.  Whole cars, whole chunks of buildings and everything else came crashing back at us, destroying everything around.  People were running and screaming everywhere, but there were still those of us that could only stand and watch as things unfolded.

Then a hole opened up in a small section of the clouds, and this huge arm came down through and started throwing more junk back at us.  The ironic part is that this arm was made out of the junk we had just sent through the clouds.  As we thought we were bombarding them to blow them out of the sky, they were actually taking the junk and things from it before hurling the rest back.

I remember a big chunk of building landing pretty close by to me and getting another look at that "mechanical" arm right before I woke up.