I need an overview of the lion king that tells about the heroes journy such as his call to adventure, crossing the threshold, challenges, supreme test, and his return home. thanks
This site will give you the outline of the "monomyth" - hero's journey.
http://en.wikipedia.org/wiki/Monomyth
As you read or watch the Lion King you can look for these specific items. Here is a site with a brief summary
http://www.imdb.com/title/tt0110357/