A few problems...
First, you should really set your sound to streaming so that it can't get out of sync with the movie. This isn't really a problem with yours since there isn't too much going on to slow down the framerate, but people like to pause movies if they have stuff to do and don't want to have to restart it to get the sound back in sync.
Also, there were a few plot inconsistencies:
Why would the main character have a huge lock on his door if there is no crime?
Why would the military (there shouldn't even be a military without war, but that can be easily explained away) knock him unconscious to draft him? That's completely unnecessary...it's also unlikely that they would come to his house so soon after the invasion was announced.
If an entire planet worth of draftable people is entering the military, how could they possibly have the time to give personal attention to just one individual, and how could they be able to provide him with so much space?
I might just be nitpicking, but in an animation like this, you really have to make sure that things are correct so that the audience stays immersed in it.
Despite those minor downfalls, I'm really interested to see how the story progresses.