Christian Gordon, also known as "The Immortal", is the most powerful human in existence, able to do almost anything he desires.
He didn't want the world watching him like a zoo animal, so he hid his abilities as best as he could, until the year 3058, when all of civilization had killed itself.
Christian re-winded time back to 800 A.D. in England to watch it grow before it falls again.
One day, in 2012, he gets pulled into a mysterious land by some of the oddest creatures he has ever seen; colorful, talking ponies.

This takes place in February 2012 instead of 2013 because that is when "Read it and Weep" (when the book takes place) was aired, as far as I've heard.

Finally, after several months, it's finished.