Mordred, an iron-fisted warlock, and his armies lay siege to Camelot, seeking to establish the dominance of magic-wielding magesover humankind. Uther Pendragon, king of the Britons, infiltrates Mordred’s lair and beheads him, saving Camelot. Uther’s treacherous brother Vortigern, who covets the throne, orchestrates a coup and sacrifices his wife Elsa to moat hags to become a demon knight, who kills Uther’s wife and slays him in combat. The only survivor is Uther’s son, who drifts away in a boat and ends up in Londinium, where he is found and raised by prostitutes.
Arthur grows into a skilled fighter and man of the streets. Arthur and his friends confront a group of Vikings who had mistreated one of the prostitutes, forcing him to pay her restitution. Afterwards, the brothel is raided by the Blacklegs, Vortigern’s minions, and Arthur learns that the Vikings were under the king’s protection. Arthur tries to escape the city but is caught and put on a ship with hundreds of other men; the Blacklegs have been forcing all men of Arthur’s age to try to pull a sword that has appeared near the castle from the surrounding stone. Arthur is able to remove the sword but is quickly overwhelmed by its power and passes out. Vortigern meets with him in the dungeon, revealing his true lineage.
Watch King Arthur: Legend of the Sword 2017 movie free online. Meanwhile, a mage identifying herself as an acolyte of Merlin presents herself to Uther’s former general, Sir Bedivere. At Arthur’s planned execution, the mage uses her magic to stage a diversion while Bedivere’s men rescue Arthur. Taken to Bedivere’s hideout, Arthur initially refuses to help them. The mage persuades Bedivere to take Arthur to a realm called the „Darklands,” where he’s given a vision of how Uther sacrificed himself to save Arthur and entomb the sword in stone. Arthur learns Vortigern was responsible for persuading Mordred to rebel against humanity, and he returns determined to destroy Vortigern.