Total Recall meets, um, ComicCon is the closest thing I can come up with.
A man wakes up from his boring business meeting only to find he's now 200 years into the future and happens to be a killing machine. He must mow down the opposition, the likes of which have never been seen: a 6' 9" Napoleon, Elvis, a "rat man" among others with the help of Joan of Arc, Loci and others.
A decent read.