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Plot Synopsis: The young wizard struggles to protect Prince Arthur in the perilous world of Camelot. While battling deadly assassins, mystical monsters and the most powerful sorcerers Camelot has ever seen, Merlin now has to face his toughest challenge yet when Morgana's blind determination puts at risk Arthur's future as well as the very balance of the world. Featuring exciting new villains, white-knuckle stunt sequences, and spectacular CGI monsters, Merlin season four is more thrilling than ever.
