I think these videos on Zoroastrianism tell a great story ...
http://www.youtube.com/watch?v=mI0rmCcGdoc
But, the second one is better.
The First Universal Battle of Good and Evil: Persian/Iranian Mythology:
http://www.youtube.com/watch?v=HUcUyjbWZ-Q
there are more , but you'll find them (if you're interested) on the Youtube menu