User blog comment:Morganaforever/Mordred's role in series 5 (SPOILERS AHEAD!)/@comment-121.127.214.230-20120818030742

If you watch the trailer at this link at 1:28 or around then you see Morgana attacking Merlin while Mordred watches next to her.

http://www.youtube.com/watch?v=MF3wJUR6tFc