Moses demands that Ramses let the Hebrews go. Ramses refuses, so Moses invokes the first of God's nine plagues unto Egypt.

And so we come to this. I still remember three years ago when I woke up to a text saying this PMV got 2nd place at Bronycon (to date my only placement in that particular contest). It is still my most viewed video.
Thus, I had to improve it, but mostly in small ways - adding new season clips when it was better and tightening up the timing.

The Prince of Egypt (c) Dreamworks
My Little Pony: Friendship is Magic (c) Hasbro