User blog comment:Ḡwẵine Ḹٍٍkƨ Ĺiĸe Ͼềлȑềd/WORST plot hole in the HISTORY of 'Merlin'/@comment-4135736-20121017073620

Oh yes, that was indeed a plothole, when Arthur last saw Mordred, he did know that he had magic and that he was a druid, the fact that they made Arthur "forget" in this episode made no sense at all. However, an even bigger plothole than this was the fact that Merlin didn't even ask Mordred whether he had forgiven him for betraying him (back in Series 2 Mordred said "I will never forgive this Emrys, and I will never forget"), he just behaved as if Mordred never said that.