Overall Rating: 9.5 Merlin arrives in Camelot and learns that King Uther has forbidden magic, which is punishable by death -- yet, it is magic he uses to save the life of Arthur, the king's son. Watch the episode streaming online above. The Dragon’s call, the pilot show for Merlin is really well done. It’s a great fantasy show and a well constructed pilot. They did a wonderful job introducing thoroughly and succinctly the main character’s, establishing the setting and showing us the magic of the setting. The writing is solid and a nice take on the Arthurian legends.