Weapons recite the story of one man and his terrifying tale.

King Asura, the malevolent ruler, is on a quest to acquire the Seven Swords, intending to merge them into a single Holy Sword to dominate all realms. Armed with five of these formidable blades, he relentlessly seeks the last two to fulfill his ambition. These remaining swords are safeguarded by the skilled martial artists Master Weifeng and his protégé Lanzhu. As King Asura's demon warriors hunt for the swords, a complex love triangle unfolds involving Yufang and the enigmatic secrets tied to her past romance.

The Vikings were among the fiercest warriors of all time. Yet only a select few carried the ultimate weapon of their era: the feared Ulfberht sword. With cutting edge science and old-fashioned detective work, National Geographic reconstructs this revolutionary tool.