This is pretty cool. Have a look at this speculative re-arrangement from Sammpo Alternative Channel of all the trailer and teaser and TV spots footage for The Hobbit: The Battle of the Five Armies rearranged into what might — or might not — be chronological viewing order.
Accuracy may be arguable, but this could be quite close to a short summary of the film. If you’re not avoiding spoilers have a look, and leave your thoughts below in the comments!