Act I (джен)

After the fall, Loki lands on Midgard, and proceeds to live up to the label of 'chaotic neutral' as best as he can (while subtly attempting to rule the world).
At the same time, however, one Anthony Edward Stark decides that thwarting the wave of insanity sweeping the world is in his best interests (after ruling the world, of course).
It's a good thing they're enemies.
Nick Fury very much wants them to stay that way.