This show tell use the story between Arthur and Merlin. First Merlin arrived in Carmelo, he saw in this kingdom, magic is not allowed, enchanter will be killed if someone found he/ she can use the magic. Merlin went to Gaius home, who was the most famous doctor in the kingdom, spent his whole life for the kingdom. Merlin gave him a letter from Merlin's Mum and then he gave him some job to do like clean his room, and give his hand when he was making medicine.
Because an accident, Gaius found out that Merlin is a enchanter but he didn't told solider to arreste him, he just tell Merlin don't be a bad enchanter. Of course, Merlin agreeed with him, the Gaius give him a magic book to learn more incantation. In fact, Gaius also was a enchanter.
On the road, Merlin met Arthur, he was hitted by Arthur, however, Arthur thought Merlin was a funny guy so he let Merlin be his manservant. Because that, Merlin find a secret tunnel under the castle. At the end of the tunnel, he found a huge hole, there was a dragon in there. That Dragon was the last one in this world because in the accient time, knights and enchanters kille all dragons except it. And Dragon said Merlin had a important assigment that he need protect Arthur and let him be the king of Carmelo.
In the other season, you will see Merlin isn't a normal enchanter.
The director of this TV SHOW is called Jame Hawes, UK- BBC made this SHOW.
If you want to know more about it, click http://www.bbc.co.uk/programmes/b00mjlxv.
——By David