Usurper Sligon, a worshipper of the old
Norse god pantheon, and other rebel Vikings have forced into exile the Christian royal family of the
Viking kingdom of
Scandia: King Aguar, his wife, and their son, Prince Valiant. The family comes under
King Arthur's protection. After having grown to become a man, Valiant is sent to
Camelot to train under the tutelage of Aguar's family friend, a knight of the
Round Table, Sir
Gawain. During his wanderings, Valiant witnesses a clandestine meeting between some of Sligon's Vikings and a black-clad knight. Valiant is discovered, but eludes his pursuers and runs into Sir Gawain. Gawain takes Valiant to King Arthur, who decrees that Valiant shall become a knight by undergoing
a squire's training. One of Arthur's knights, Sir Brack, offers to take him on, but Valiant is instead made squire to Sir Gawain. Brack offers to take Valiant to the place where the prince has seen the Black Knight, someone known only by rumor in Camelot, in order to backtrack him. Once there, they separate, and Valiant is ambushed by bowmen. He escapes with an arrow in his back, stumbles into the territory of King Luke and is taken in by his daughters, Aleta and Ilene. Aleta and Valiant fall in love, but Luke disapproves of Valiant's Viking origin; so their relationship must remain a secret. Meanwhile, Ilene is attracted to Gawain. Back at Camelot, Valiant discovers that, while searching for him, Gawain ran into an ambush by the Black Knight and barely survived it. Noting that Brack had disappeared around the same time, Valiant becomes suspicious. Later, Aleta and Ilene attend a tournament held in Camelot in their honor. As an added prize, the victor of the tournament will win Aleta's hand. Sir Gawain is too wounded to participate. Valiant dons Gawain's armor in order to win Aleta, but loses his joust and is unmasked. Another contender appears and wins the bout before falling off his horse. This knight is actually Gawain. Awakening on his sickbed, Gawain beholds Aleta and falls in love with her. Out of respect for his patron, Valiant withholds the truth about their relationship from him. For his act of presumption, Valiant is confined to his quarters and forced to tend Gawain. A messenger comes to the castle to see Brack, and the same night Aguar's
seal ring is thrown through the window of Gawain's chambers. Realizing that his parents are in trouble, Valiant prepares to return to his home. Before he can do this, however, he is captured by Sligon's Vikings and the Black Knight, who is actually Brack. Brack made a pact with Sligon: For delivering Aguar's family, Sligon will aid him in conquering Camelot and becoming the King of Britain. Worried about Valiant, Aleta arrives and is captured. The two are brought to Scandia, where Sligon prepares to execute them and Valiant's captured parents. However, a group of Christian Vikings, led by Aguar's family friend Boltar, stage a revolt. Boltar infiltrates the castle to assassinate Sligon, encounters Valiant, who escaped his cell, and orders him to give the attack signal to their group once Sligon has fallen. But Valiant is discovered before Boltar can kill Sligon; and during his struggle with a guard a false signal is given, causing the Christian Vikings to attack too soon. To solve the situation, Valiant sets parts of the castle ablaze, breaching the wall and throwing the defenders into confusion, and manages to slay Sligon. Valiant then returns to Camelot with Aleta and accuses Brack of treachery before Arthur and the assembled Round Table knights. Brack calls for a
trial by combat, and despite Gawain's protest and his offer to fight in Valiant's stead, the prince accepts the challenge. In the ensuing fight, Valiant kills Brack. He offers Aleta to Gawain; but during the period of worry about them, the latter had learned the truth. Gawain gives Aleta and Valiant his blessing, and having redeemed his honor by exposing Brack, Valiant is made a Knight of the Round Table by King Arthur. ==Cast==