官方剧情
When King Uther dies and Britain faces chaos, Merlin presents an unknown named Arthur as the new king by birthright, as the late king's son, against the ambitious desires of his half-sister, Morgan.
第 1 季 共 10 集
播出时间：2011年2月26日
第 1 集 Homecoming
播出时间：2011年2月26日
In the wake of King Uther's sudden death, chaos threatens to engulf Britain. When the sorcerer Merlin has visions of a dark future, he installs the young and impetuous Arthur, Uther's unknown son and heir, who has been raised from birth as a commoner. But Arthur's cold and ambitious half sister Morgan will fight him to the bitter end, summoning unnatural forces to claim the crown in this epic battle for control. These are dark times indeed for the new king, with Guinevere being the only shining light in Arthur's harsh world. Faced with profound moral decisions, and the challenge of uniting a kingdom broken by war and steeped in deception, Arthur will be tested beyond imagination.
第 2 集 The Sword And The Crown
播出时间：2011年4月2日
Arthur meets Guinevere, the woman of his dreams. Morgan and King Lot conspire to attack Camelot and take the throne. Merlin has Arthur reclaim the legacy sword in the stone to prove his worthiness as king.
第 3 集 Guinevere
播出时间：2011年4月9日
Kay and Leontes seek out a trusted new warrior to join them. Arthur and Merlin accept an invitation to join Morgan at her castle for dinner. Arthur is forced to concede defeat in his pursuit of Guinevere
第 4 集 Lady of the Lake
播出时间：2011年4月16日
Merlin sets off on a journey to find a sword suitable for a king by seeking out a legendary sword maker. A conversation with Guinevere changes Arthur and he begins to assert his power by sparring with Leontes.
第 5 集 Justice
播出时间：2011年4月30日
Arthur creates Camelot's first tribunal of justice which takes shape through a battle of wills, not blood. Aided by Sybil's cunning, Morgan reaches out to the townspeople in her pursuit to take back the throne.
第 6 集 Three Journeys
播出时间：2011年5月7日
The men of Camelot discover the territory beyond the castle is filled with danger and disorder. Arthur hears Guinevere has ridden out alone to see her father and goes after her to protect her on the journey.
第 7 集 The Long Night
播出时间：2011年5月14日
Morgan puts on a feast for King Arthur and his Knights at Castle Pendragon which turns to panic as the castle comes under attack. As Arthur and Morgan's men join forces to fight, Merlin believes a plan is afoot.
第 8 集 Igraine
播出时间：2011年5月21日
Pursuing the power of her dark magic, Morgan hides in plain sight at Camelot where she begins her plan to drive a wedge between Arthur and his men. Igraine tries to find a way out of Castle Pendragon.
第 9 集 The Battle of Bardon Pass
播出时间：2011年6月4日
Arthur and his men ride out to defend Bardon Pass after learning of an attack. Merlin comes to the realization that he's been seduced by a shape-shifting Morgan. The men begin to lose faith in Arthur.
第 10 集 Reckoning
播出时间：2011年6月11日
Arthur must defend himself against mercenaries on Bardon Pass. Morgan leads Sybil and her followers to Camelot where she receives information that leads her to believe her ambitions will be realized.
