When a selfish store clerk finds himself in the middle-ages, he clumsily awakens an ancient evil in an effort to return home; in doing so, he finds himself fighting armies of un-dead to not only save himself but humanity.  

Revision:

• Unwittingly thrust into the middle ages, a selfish store clerk must retrieve the Necronomicon before the Army of Darkness to return home and save humanity.

Full disclosure, I asked my English Major-Partner to help me with this. She can write a pitch.

I agree with Lempicka. I think it's worth unpacking what the "ancient evil" wants to achieve so we understand what's at stake. Why is humanity at risk?

It's pretty solid though, a little long, but I think that's inevitable given the time-travel, fantasy elements. Good work.?

I like this, but I was wondering what the impact of the armies of the undead will have - as this is set in the middle ages, will the undead kill the future (as in Back to The Future)?