Uther fears his son's power, and Merlin has helped Arthur flee to escape imprisonment. Now the two of them must fight to regain Arthur's rightful place in Camelot.
A lot of power is released when you kill a sorcerer. Power enough to rend the very fabric of time. Its up to Merlin to change destiny in the only way he can.
Merlin is content, but not exactly happy, in Ealdor, so when his mother's friend Gaius' shows up with a tale of dragons under castles and priestesses and an exiled prince, Merlin is thrilled to listen. The reality, however, isn't so great: the priestess is a killer, the prince is a prat, and the dragon sure does have some curious ideas about them. But Gaius is saying it's Merlin responsibility -- destiny, even -- to help Arthur win back his kingdom, and to evade all the forces amassing against him on the way. This would, of course, be a whole lot easier if he could stand to be in the same village as Arthur for enough time for them to stop arguing.
Tony O does not befriend losers. Tony O is not gay, not crazy, he is not particularly nice and he is most definitely not royalty. Destiny disagrees.